AIR-AP1832I-I-K9 not support 802.11a/n/ac

[Mahmoud]

Hello,

I have WLC 5508 with 8.5.161.0 version and two types of accesspoints (AIR-AP1832I-I-K9 , AIR-CAP1602I-E-K9)

I have noticed that 1832 AP is showing the interfaces of 802.11a/n/ac is down and regulatory domain is not supported

but 1600 is supoorted

kindly advise

[Mahmoud]

I have choose the correct country from the AP but didn't solve the issue , I will try to reboot it and collect the logs

[Mahmoud]

many thanks for you all

after the reboot the interface came up finally.

I have enabled the high throughput but the PCs stuck at 802.11a with low data rate however it support the 802.11g and 802.11ac

is there any extra steps to get the highest throughput from APs.

[patoberli]

What connection speed does the PC exactly show?

If it's Windows, open a cmd and enter: netsh wlan show interface

There the receive and transmit rate is the interesting part.

[Mahmoud]

some times it shows 54Mbps and sometimes 6Mbps

[Arshad Safrulla]

make sure you have all the MCS rates enabled in the WLC.

[Mahmoud]

yes it is enabled

(Cisco Controller) >show 802.11b

802.11b Network.................................. Enabled
11gSupport....................................... Enabled
11nSupport....................................... Enabled
802.11b/g Operational Rates
802.11b/g 1M Rate............................ Disabled
802.11b/g 2M Rate............................ Supported
802.11b/g 5.5M Rate.......................... Supported
802.11b/g 11M Rate........................... Mandatory
802.11g 6M Rate.............................. Supported
802.11g 9M Rate.............................. Supported
802.11g 12M Rate............................. Supported
802.11g 18M Rate............................. Supported
802.11g 24M Rate............................. Supported
802.11g 36M Rate............................. Supported
802.11g 48M Rate............................. Supported
802.11g 54M Rate............................. Supported
802.11n MCS Settings:
MCS 0........................................ Supported
MCS 1........................................ Supported
MCS 2........................................ Supported
MCS 3........................................ Supported

--More-- or (q)uit
MCS 4........................................ Supported
MCS 5........................................ Supported
MCS 6........................................ Supported
MCS 7........................................ Supported
MCS 8........................................ Supported
MCS 9........................................ Supported
MCS 10....................................... Supported
MCS 11....................................... Supported
MCS 12....................................... Supported
MCS 13....................................... Supported
MCS 14....................................... Supported
MCS 15....................................... Supported
MCS 16....................................... Supported
MCS 17....................................... Supported
MCS 18....................................... Supported
MCS 19....................................... Supported
MCS 20....................................... Supported
MCS 21....................................... Supported
MCS 22....................................... Supported
MCS 23....................................... Supported
MCS 24....................................... Supported
MCS 25....................................... Supported
MCS 26....................................... Supported

--More-- or (q)uit
MCS 27....................................... Supported
MCS 28....................................... Supported
MCS 29....................................... Supported
MCS 30....................................... Supported
MCS 31....................................... Supported
802.11n Status:
A-MPDU Tx:
Priority 0............................... Enabled
Priority 1............................... Enabled
Priority 2............................... Enabled
Priority 3............................... Enabled
Priority 4............................... Enabled
Priority 5............................... Enabled
Priority 6............................... Disabled
Priority 7............................... Disabled
Aggregation scheduler.................... Enabled
Realtime Timeout..................... 10
Non Realtime Timeout................. 200
A-MSDU Tx:
Priority 0............................... Enabled
Priority 1............................... Enabled
Priority 2............................... Enabled
Priority 3............................... Enabled

--More-- or (q)uit
Priority 4............................... Enabled
Priority 5............................... Enabled
Priority 6............................... Disabled
Priority 7............................... Disabled
A-MSDU Max Subframes ........................ 3
A-MSDU MAX Length ........................... 8k
Rifs Rx ..................................... Enabled
Guard Interval .............................. Any
Beacon Interval.................................. 100
CF Pollable mode................................. Disabled
CF Poll Request mandatory........................ Disabled
CFP Period....................................... 4
CFP Maximum Duration............................. 60
Default Channel.................................. 1
Default Tx Power Level........................... 0
DTPC Status..................................... Enabled
RSSI Low Check................................... Disabled
RSSI Threshold................................... -80
Call Admission Limit ........................... 105
G711 CU Quantum ................................. 15
ED Threshold..................................... -50
Fragmentation Threshold.......................... 2346
PBCC mandatory................................... Disabled

--More-- or (q)uit
RTS Threshold.................................... 2347
Short Preamble mandatory......................... Enabled
Short Retry Limit................................ 7
Legacy Tx Beamforming setting.................... Disabled
Traffic Stream Metrics Status.................... Disabled
Expedited BW Request Status...................... Disabled
World Mode....................................... Enabled
Faster Carrier Tracking Loop..................... Disabled
EDCA profile type................................ default-wmm
Voice MAC optimization status.................... Disabled
Call Admission Control (CAC) configuration
Voice AC - Admission control (ACM)............ Disabled
Voice Stream-Size............................. 84000
Voice Max-Streams............................. 2
Voice max RF bandwidth........................ 75
Voice reserved roaming bandwidth.............. 6
Voice CAC Method.............................. Load-Based
Voice tspec inactivity timeout................ Disabled
CAC SIP-Voice configuration
SIP based CAC ................................ Disabled
SIP Codec Type ............................... CODEC_TYPE_G711
SIP call bandwidth: .......................... 64
SIP call bandwidth sample-size ............... 20

--More-- or (q)uit
Video AC - Admission control (ACM)............ Disabled
Video max RF bandwidth........................ 0
Video reserved roaming bandwidth.............. 0
Video load-based CAC mode..................... Disabled
Video CAC Method ............................. Static
CAC SIP-Video configuration
SIP based CAC ................................ Disabled
Best-effort AC - Admission control (ACM)...... Disabled
Background AC - Admission control (ACM)....... Disabled
Maximum Number of Clients per AP................. 200

(Cisco Controller) >show 802.11a

802.11a Network.................................. Enabled
11acSupport...................................... Enabled
11nSupport....................................... Enabled
802.11a Low Band........................... Enabled
802.11a Mid Band........................... Enabled
802.11a High Band.......................... Enabled
802.11a Operational Rates
802.11a 6M Rate.............................. Mandatory
802.11a 9M Rate.............................. Supported
802.11a 12M Rate............................. Mandatory
802.11a 18M Rate............................. Supported
802.11a 24M Rate............................. Mandatory
802.11a 36M Rate............................. Supported
802.11a 48M Rate............................. Supported
802.11a 54M Rate............................. Supported
802.11n MCS Settings:
MCS 0........................................ Supported
MCS 1........................................ Supported
MCS 2........................................ Supported
MCS 3........................................ Supported
MCS 4........................................ Supported

--More-- or (q)uit
MCS 5........................................ Supported
MCS 6........................................ Supported
MCS 7........................................ Supported
MCS 8........................................ Supported
MCS 9........................................ Supported
MCS 10....................................... Supported
MCS 11....................................... Supported
MCS 12....................................... Supported
MCS 13....................................... Supported
MCS 14....................................... Supported
MCS 15....................................... Supported
MCS 16....................................... Supported
MCS 17....................................... Supported
MCS 18....................................... Supported
MCS 19....................................... Supported
MCS 20....................................... Supported
MCS 21....................................... Supported
MCS 22....................................... Supported
MCS 23....................................... Supported
MCS 24....................................... Supported
MCS 25....................................... Supported
MCS 26....................................... Supported
MCS 27....................................... Supported

--More-- or (q)uit
MCS 28....................................... Supported
MCS 29....................................... Supported
MCS 30....................................... Supported
MCS 31....................................... Supported
802.11ac MCS Settings:
Nss=1: MCS 0-9 .............................. Supported
Nss=2: MCS 0-9 .............................. Supported
Nss=3: MCS 0-9 .............................. Supported
Nss=4: MCS 0-7 .............................. Supported
802.11n Status:
A-MPDU Tx:
Priority 0............................... Enabled
Priority 1............................... Enabled
Priority 2............................... Enabled
Priority 3............................... Enabled
Priority 4............................... Enabled
Priority 5............................... Enabled
Priority 6............................... Disabled
Priority 7............................... Disabled
Aggregation scheduler.................... Enabled
Frame Burst.............................. Automatic
Realtime Timeout..................... 10
Non Realtime Timeout................. 200

--More-- or (q)uit
A-MSDU Tx:
Priority 0............................... Enabled
Priority 1............................... Enabled
Priority 2............................... Enabled
Priority 3............................... Enabled
Priority 4............................... Enabled
Priority 5............................... Enabled
Priority 6............................... Disabled
Priority 7............................... Disabled
A-MSDU Max Subframes ........................ 3
A-MSDU MAX Length ........................... 8k
Rifs Rx ..................................... Enabled
Guard Interval .............................. Any
Beacon Interval.................................. 100
CF Pollable mandatory............................ Disabled
CF Poll Request mandatory........................ Disabled
CFP Period....................................... 4
CFP Maximum Duration............................. 60
Default Channel.................................. 36
Default Tx Power Level........................... 0
DTPC Status..................................... Enabled
Fragmentation Threshold.......................... 2346
RSSI Low Check................................... Disabled

--More-- or (q)uit
RSSI Threshold................................... -80
TI Threshold..................................... -50
Legacy Tx Beamforming setting.................... Disabled
Traffic Stream Metrics Status.................... Disabled
Expedited BW Request Status...................... Disabled
World Mode....................................... Enabled
dfs-peakdetect................................... Enabled
EDCA profile type................................ default-wmm
Voice MAC optimization status.................... Disabled
Call Admission Control (CAC) configuration
Voice AC:
Voice AC - Admission control (ACM)............ Disabled
Voice Stream-Size............................. 84000
Voice Max-Streams............................. 2
Voice max RF bandwidth........................ 75
Voice reserved roaming bandwidth.............. 6
Voice CAC Method ............................. Load-Based
Voice tspec inactivity timeout................ Disabled
CAC SIP-Voice configuration
SIP based CAC ................................ Disabled
SIP Codec Type ............................... CODEC_TYPE_G711
SIP call bandwidth ........................... 64
SIP call bandwith sample-size ................ 20

--More-- or (q)uit
Video AC:
Video AC - Admission control (ACM)............ Disabled
Video max RF bandwidth........................ 0
Video reserved roaming bandwidth.............. 0
Video load-based CAC mode..................... Disabled
Video CAC Method ............................. Static
CAC SIP-Video Configuration
SIP based CAC ................................ Disabled
Best-effort AC - Admission control (ACM)...... Disabled
Background AC - Admission control (ACM)....... Disabled
Maximum Number of Clients per AP Radio........... 200

(Cisco Controller) >

[Mahmoud]

Access point side

(Cisco Controller) >
(Cisco Controller) >show ap config 802.11a F1-5

Cisco AP Identifier.............................. 45
Cisco AP Name.................................... F1-5
Country code..................................... Multiple Countries : EG,FR
Regulatory Domain allowed by Country............. 802.11bg:-E 802.11a:-EI
AP Country code.................................. EG - Egypt
AP Regulatory Domain............................. -I
Switch Port Number .............................. 1
MAC Address......................................
IP Address Configuration......................... Static IP assigned
IP Address.......................................
IP NetMask.......................................
Gateway IP Addr..................................
Domain...........................................
Name Server......................................
NAT External IP Address.......................... None
CAPWAP Path MTU.................................. 1005
DHCP Release Override............................ Disabled
Telnet State..................................... Globally Disabled
Ssh State........................................ Globally Disabled
Cisco AP Location................................ default location
Cisco AP Floor Label............................. 0
Cisco AP Group Name..............................
Primary Cisco Switch Name........................
Primary Cisco Switch IP Address.................. Not Configured
Secondary Cisco Switch Name......................
Secondary Cisco Switch IP Address................ Not Configured
Tertiary Cisco Switch Name.......................
Tertiary Cisco Switch IP Address................. Not Configured
Administrative State ............................ ADMIN_ENABLED
Operation State ................................. REGISTERED
Mirroring Mode .................................. Disabled
AP Mode ......................................... Local
Public Safety ................................... Disabled
AP SubMode ...................................... Not Configured
Rogue Detection ................................. Enabled
Remote AP Debug ................................. Disabled
Logging trap severity level ..................... errors
KPI not configured ..............................
Logging syslog facility ......................... kern
S/W Version .................................... 8.5.161.0
Boot Version ................................... 1.1.2.4
Mini IOS Version ................................ 0.0.0.0
Stats Reporting Period .......................... 30
Stats Collection Mode ........................... normal
Radio Core Mode ................................. Normal
LED State........................................ Enabled
PoE Pre-Standard Switch.......................... Disabled
PoE Power Injector MAC Addr...................... Disabled
Power Type/Mode.................................. PoE/Full Power
Number Of Slots.................................. 2
AP Model......................................... AIR-AP1832I-I-K9
AP Image......................................... AP1G4-K9W8-M
IOS Version...................................... 8.5.161.0
Reset Button..................................... Enabled
AP Serial Number.................................
AP Certificate Type.............................. Manufacture Installed
AP LAG Configuration Status ..................... Disabled
LAG Support for AP .............................. No
AP multicast mode :.............................. Disabled

AP User Mode................................... AUTOMATIC
AP User Name..................................... Cisco
AP Dot1x User Mode............................... Not Configured
AP Dot1x User Name............................... Not Configured
Cisco AP system logging host..................... 255.255.255.255
AP Up Time....................................... 3 days, 06 h 18 m 06 s
AP LWAPP Up Time................................. 3 days, 03 h 03 m 04 s
Join Date and Time............................... Wed Oct 27 12:38:49 2021
Join Taken Time.................................. 0 days, 00 h 01 m 11 s
Unencrypted Data Keep Alive ..................... Enable
AP broken antenna detection - Status ............ Disabled (Global)

Attributes for Slot 1
Radio Type................................... RADIO_TYPE_80211ac-5
Radio Subband................................ RADIO_SUBBAND_ALL
Administrative State ........................ ADMIN_ENABLED
Operation State ............................. UP
Mesh Radio Role ............................. ACCESS
Radio Role .................................. Client Serving (Local)
CellId ...................................... 0

Station Configuration
Configuration ............................. CUSTOMIZED
Number Of WLANs ........................... 12
Medium Occupancy Limit .................... 100
CFP Period ................................ 4
CFP MaxDuration ........................... 60
BSSID .....................................
Operation Rate Set
6000 Kilo Bits........................... MANDATORY
9000 Kilo Bits........................... SUPPORTED
12000 Kilo Bits.......................... MANDATORY
18000 Kilo Bits.......................... SUPPORTED
24000 Kilo Bits.......................... MANDATORY
36000 Kilo Bits.......................... SUPPORTED
48000 Kilo Bits.......................... SUPPORTED
54000 Kilo Bits.......................... SUPPORTED
MCS Set
MCS 0.................................... SUPPORTED
MCS 1.................................... SUPPORTED
MCS 2.................................... SUPPORTED
MCS 3.................................... SUPPORTED
MCS 4.................................... SUPPORTED
MCS 5.................................... SUPPORTED
MCS 6.................................... SUPPORTED
MCS 7.................................... SUPPORTED
MCS 8.................................... SUPPORTED
MCS 9.................................... SUPPORTED
MCS 10................................... SUPPORTED
MCS 11................................... SUPPORTED
MCS 12................................... SUPPORTED
MCS 13................................... SUPPORTED
MCS 14................................... SUPPORTED
MCS 15................................... SUPPORTED
MCS 16................................... DISABLED
MCS 17................................... DISABLED
MCS 18................................... DISABLED
MCS 19................................... DISABLED
MCS 20................................... DISABLED
MCS 21................................... DISABLED
MCS 22................................... DISABLED
MCS 23................................... DISABLED
MCS 24................................... DISABLED
MCS 25................................... DISABLED
MCS 26................................... DISABLED
MCS 27................................... DISABLED
MCS 28................................... DISABLED
MCS 29................................... DISABLED
MCS 30................................... DISABLED
MCS 31................................... DISABLED
802.11ac MCS Set
Nss=1: MCS 0-9 .......................... SUPPORTED
Nss=2: MCS 0-9 .......................... SUPPORTED
Nss=3: MCS 0-9 .......................... DISABLED
Nss=4: MCS 0-7 .......................... DISABLED
Beacon Period ............................. 100
Fragmentation Threshold ................... 2346
Multi Domain Capability Implemented ....... TRUE
Multi Domain Capability Enabled ........... TRUE
Country String ............................ EG

Multi Domain Capability
Configuration ............................. CUSTOMIZED
First Chan Num ............................ 0
Number Of Channels ........................ 0

MAC Operation Parameters
Configuration ............................. CUSTOMIZED
Fragmentation Threshold ................... 2346
Packet Retry Limit ........................ 64

Tx Power
Num Of Supported Power Levels ............. 7
Tx Power Level 1 .......................... 17 dBm
Tx Power Level 2 .......................... 14 dBm
Tx Power Level 3 .......................... 11 dBm
Tx Power Level 4 .......................... 8 dBm
Tx Power Level 5 .......................... 5 dBm
Tx Power Level 6 .......................... 2 dBm
Tx Power Level 7 .......................... 1 dBm
Tx Power Configuration .................... AUTOMATIC
Current Tx Power Level .................... 1
Tx Power Assigned By ...................... DTPC

Phy OFDM parameters
Configuration ............................. AUTOMATIC
Current Channel ........................... 44
Channel Assigned By ....................... Interference
Extension Channel ......................... ABOVE
Channel Width.............................. 40 Mhz
Allowed Channel List....................... 36,40,44,48,52,56,60,64
TI Threshold .............................. -50
DCA Channel List........................... Global
Legacy Tx Beamforming Configuration ....... AUTOMATIC
Legacy Tx Beamforming ..................... DISABLED
Antenna Type............................... INTERNAL_ANTENNA
Internal Antenna Gain (in .5 dBi units).... 10
Diversity.................................. DIVERSITY_ENABLED
802.11n Antennas
A....................................... ENABLED
B....................................... ENABLED
C....................................... ENABLED
D....................................... DISABLED

Performance Profile Parameters
Configuration ............................. AUTOMATIC
Interference threshold..................... 10 %
Noise threshold............................ -70 dBm
RF utilization threshold................... 80 %
Data-rate threshold........................ 1000000 bps
Client threshold........................... 12 clients
Coverage SNR threshold..................... 16 dB
Coverage exception level................... 25 %
Client minimum exception level............. 3 clients
Rogue Containment Information
Containment Count............................ 0

CleanAir Management Information
CleanAir Capable......................... No

Radio Extended Configurations
Beacon period.............................. 100 milliseconds
Beacon range............................... AUTO
Multicast buffer........................... AUTO
Multicast data-rate........................ AUTO
RX SOP threshold........................... AUTO
CCA threshold.............................. AUTO
AMSDU Max Length................................. 8K(7935)

(Cisco Controller) >

[patoberli]

Can't see anything wrong with the two outputs, but might have missed something.
Can you output a "show client macaddressofclient" while he has a bad connection?

[Mahmoud]

(Cisco Controller) >show client detail 14:18:c3:79:7a:66
Client MAC Address............................... 14:18:c3:79:7a:66
Client Username ................................. M
Hostname: .......................................
Device Type: .................................... Unclassified
AP MAC Address................................... :d3:be:00
AP Name.......................................... F1-5
AP radio slot Id................................. 1
Client State..................................... Associated
Client User Group................................ M
Client NAC OOB State............................. Access
Wireless LAN Id.................................. 5
Wireless LAN Network Name (SSID)................. WIFI
Wireless LAN Profile Name........................ WIFI
Hotspot (802.11u)................................ Not Supported
BSSID............................................ :d3:be:0d
Connected For ................................... 4308 secs
Channel.......................................... 44
IP Address....................................... 10.20.1.140
Gateway Address.................................. 10.20.1.129
Netmask.......................................... 255.255.255.192
Association Id................................... 15
Authentication Algorithm......................... Open System
Reason Code...................................... 1
Status Code...................................... 0
Client CCX version............................... No CCX support
Re-Authentication Timeout........................ 82093
QoS Level........................................ Silver
Avg data Rate.................................... 5000
Burst data Rate.................................. 5000
Avg Real time data Rate.......................... 5000
Burst Real Time data Rate........................ 5000
Avg Uplink data Rate............................. 5000
Burst Uplink data Rate........................... 5000
Avg Uplink Real time data Rate................... 5000
Burst Uplink Real Time data Rate................. 5000
802.1P Priority Tag.............................. disabled
Security Group Tag............................... Unknown(0)
KTS CAC Capability............................... No
Qos Map Capability............................... Yes
WMM Support...................................... Enabled
APSD ACs....................................... BK BE VI VO
Supported Rates.................................. 6.0,9.0,12.0,18.0,24.0,36.0,
............................................. 48.0,54.0
Mobility State................................... Local
Mobility Move Count.............................. 0
Security Policy Completed........................ Yes
Policy Manager State............................. RUN
AAA Override ACL Name............................ none
AAA Override ACL Applied Status.................. Unavailable
AAA Override Flex ACL Name....................... none
AAA Override Flex ACL Applied Status............. Unavailable
AAA URL redirect................................. none
Audit Session ID................................. c0a8c00f0000959961823cc7
AAA Role Type.................................... none
Local Policy Applied............................. none
IPv4 ACL Name.................................... FULL
AAA FlexConnect ACL Applied Status............... Unavailable
IPv4 ACL Applied Status.......................... Yes
IPv6 ACL Name.................................... none
IPv6 ACL Applied Status.......................... Unavailable
Layer2 ACL Name.................................. none
Layer2 ACL Applied Status........................ Unavailable
Client Type...................................... SimpleIP
mDNS Status...................................... Disabled
mDNS Profile Name................................ none
No. of mDNS Services Advertised.................. 0
Policy Type...................................... WPA2
Authentication Key Management.................... 802.1x
Encryption Cipher................................ CCMP-128 (AES)
Protected Management Frame ...................... No
Management Frame Protection...................... No
EAP Type......................................... EAP-FAST
Interface........................................ system-admin-ise
VLAN............................................. 352
Quarantine VLAN.................................. 0
Access VLAN...................................... 352
Local Bridging VLAN.............................. 192
Client Capabilities:
CF Pollable................................ Not implemented
CF Poll Request............................ Not implemented
Short Preamble............................. Not implemented
PBCC....................................... Not implemented
Channel Agility............................ Not implemented
Listen Interval............................ 250
Fast BSS Transition........................ Not implemented
11v BSS Transition......................... Implemented
Client Wifi Direct Capabilities:
WFD capable................................ No
Manged WFD capable......................... No
Cross Connection Capable................... No
Support Concurrent Operation............... No
Fast BSS Transition Details:
DNS Server details:
DNS server IP ............................. 10.100.14.4
DNS server IP ............................. 10.100.14.5
Assisted Roaming Prediction List details:

Client Dhcp Required: True
Allowed (URL)IP Addresses
-------------------------

AVC Profile Name: ............................... none
OpenDns Profile Name: ........................... none
Fastlane Client: ................................ No
Max DSCP: ....................................... 0
Client Statistics:
Number of Bytes Received................... 16252425
Number of Bytes Sent....................... 154372743
Total Number of Bytes Sent................. 154372743
Total Number of Bytes Recv................. 16252425
Number of Bytes Sent (last 90s)............ 15314
Number of Bytes Recv (last 90s)............ 2130
Number of Packets Received................. 109688
Number of Packets Sent..................... 159410
Number of Interim-Update Sent.............. 0
Number of EAP Id Request Msg Timeouts...... 0
Number of EAP Id Request Msg Failures...... 0
Number of EAP Request Msg Timeouts......... 0
Number of EAP Request Msg Failures......... 0
Number of EAP Key Msg Timeouts............. 0
Number of EAP Key Msg Failures............. 0
Number of Data Retries..................... 645
Number of RTS Retries...................... 0
Number of Duplicate Received Packets....... 0
Number of Decrypt Failed Packets........... 0
Number of Mic Failured Packets............. 0
Number of Mic Missing Packets.............. 0
Number of RA Packets Dropped............... 0
Number of Policy Errors.................... 0
Radio Signal Strength Indicator............ -90 dBm
Signal to Noise Ratio...................... 9 dB
Client RBACL Statistics:
Number of RBACL Allowed Packets............ 0
Number of RBACL Denied Packets............. 0
Client Rate Limiting Statistics:
Number of Data Packets Received............ 0
Number of Data Rx Packets Dropped.......... 0
Number of Data Bytes Received.............. 0
Number of Data Rx Bytes Dropped............ 0
Number of Realtime Packets Received........ 0
Number of Realtime Rx Packets Dropped...... 0
Number of Realtime Bytes Received.......... 0
Number of Realtime Rx Bytes Dropped........ 0
Number of Data Packets Sent................ 0
Number of Data Tx Packets Dropped.......... 0
Number of Data Bytes Sent.................. 0
Number of Data Tx Bytes Dropped............ 0
Number of Realtime Packets Sent............ 0
Number of Realtime Tx Packets Dropped...... 0
Number of Realtime Bytes Sent.............. 0
Number of Realtime Tx Bytes Dropped........ 0

[patoberli]

This client had a REALLY poor signal when you entered the show client detail command:

Radio Signal Strength Indicator............ -90 dBm
Signal to Noise Ratio...................... 9 dB

With such a low signal it's no wonder it's working bad for this client. Are you sure the antennas are correctly attached and capable for 5 GHz?

This is assuming the client was within 5 meters of the AP. 

[Mahmoud]

this AP "AIR-AP1832I-I-K9" has built in antenna and yes the client is less than 5 meters away from the AP

another sample with better signal strength but with poor performance also

(Cisco Controller) >show client detail 48:89:e7:62:56:5b
Client MAC Address............................... 48:89:e7:62:56:5b
Client Username .................................
Hostname: .......................................
Device Type: .................................... Unclassified
AP MAC Address................................... 70:f0:96:d3:be:00
AP Name.......................................... F1-5
AP radio slot Id................................. 1
Client State..................................... Associated
Client User Group................................
Client NAC OOB State............................. Access
Wireless LAN Id.................................. 5
Wireless LAN Network Name (SSID)................. WIFI
Wireless LAN Profile Name........................ WIFI
Hotspot (802.11u)................................ Not Supported
BSSID............................................ 70:f0:96:d3:be:0d
Connected For ................................... 3257 secs
Channel.......................................... 44
IP Address....................................... 10.20.1.32
Gateway Address.................................. 10.20.1.1
Netmask.......................................... 255.255.255.192
Association Id................................... 119
Authentication Algorithm......................... Open System
Reason Code...................................... 1

--More-- or (q)uit
Status Code...................................... 0
Client CCX version............................... No CCX support
Re-Authentication Timeout........................ 79619
QoS Level........................................ Silver
Avg data Rate.................................... 5000
Burst data Rate.................................. 5000
Avg Real time data Rate.......................... 5000
Burst Real Time data Rate........................ 5000
Avg Uplink data Rate............................. 5000
Burst Uplink data Rate........................... 5000
Avg Uplink Real time data Rate................... 5000
Burst Uplink Real Time data Rate................. 5000
802.1P Priority Tag.............................. disabled
Security Group Tag............................... Unknown(0)
KTS CAC Capability............................... No
Qos Map Capability............................... Yes
WMM Support...................................... Enabled
APSD ACs....................................... BK BE VI VO
Current Rate..................................... 54.0
Supported Rates.................................. 6.0,9.0,12.0,18.0,24.0,36.0,
............................................. 48.0,54.0
Mobility State................................... Local
Mobility Move Count.............................. 0

--More-- or (q)uit
Security Policy Completed........................ Yes
Policy Manager State............................. RUN
AAA Override ACL Name............................ none
AAA Override ACL Applied Status.................. Unavailable
AAA Override Flex ACL Name....................... none
AAA Override Flex ACL Applied Status............. Unavailable
AAA URL redirect................................. none
Audit Session ID................................. c0a8c00f000096c461824353
AAA Role Type.................................... none
Local Policy Applied............................. none
IPv4 ACL Name.................................... FULL
AAA FlexConnect ACL Applied Status............... Unavailable
IPv4 ACL Applied Status.......................... Yes
IPv6 ACL Name.................................... none
IPv6 ACL Applied Status.......................... Unavailable
Layer2 ACL Name.................................. none
Layer2 ACL Applied Status........................ Unavailable
Client Type...................................... SimpleIP
mDNS Status...................................... Disabled
mDNS Profile Name................................ none
No. of mDNS Services Advertised.................. 0
Policy Type...................................... WPA2
Authentication Key Management.................... 802.1x

--More-- or (q)uit
Encryption Cipher................................ CCMP-128 (AES)
Protected Management Frame ...................... No
Management Frame Protection...................... No
EAP Type......................................... PEAP
Interface........................................ network-admin-ise
VLAN............................................. 350
Quarantine VLAN.................................. 0
Access VLAN...................................... 350
Local Bridging VLAN.............................. 192
Client Capabilities:
CF Pollable................................ Not implemented
CF Poll Request............................ Not implemented
Short Preamble............................. Not implemented
PBCC....................................... Not implemented
Channel Agility............................ Not implemented
Listen Interval............................ 250
Fast BSS Transition........................ Not implemented
11v BSS Transition......................... Implemented
Client Wifi Direct Capabilities:
WFD capable................................ No
Manged WFD capable......................... No
Cross Connection Capable................... No
Support Concurrent Operation............... No

--More-- or (q)uit
Fast BSS Transition Details:
DNS Server details:
DNS server IP ............................. 10.100.14.4
DNS server IP ............................. 10.100.14.5
Assisted Roaming Prediction List details:

Client Dhcp Required: True
Allowed (URL)IP Addresses
-------------------------

AVC Profile Name: ............................... none
OpenDns Profile Name: ........................... none
Fastlane Client: ................................ No
Max DSCP: ....................................... 0
Client Statistics:
Number of Bytes Received................... 13170886
Number of Bytes Sent....................... 53641707
Total Number of Bytes Sent................. 53641707
Total Number of Bytes Recv................. 13170886
Number of Bytes Sent (last 90s)............ 5875388
Number of Bytes Recv (last 90s)............ 816079
Number of Packets Received................. 63916

--More-- or (q)uit
Number of Packets Sent..................... 72679
Number of Interim-Update Sent.............. 0
Number of EAP Id Request Msg Timeouts...... 0
Number of EAP Id Request Msg Failures...... 0
Number of EAP Request Msg Timeouts......... 0
Number of EAP Request Msg Failures......... 0
Number of EAP Key Msg Timeouts............. 0
Number of EAP Key Msg Failures............. 0
Number of Data Retries..................... 536
Number of RTS Retries...................... 0
Number of Duplicate Received Packets....... 0
Number of Decrypt Failed Packets........... 1
Number of Mic Failured Packets............. 0
Number of Mic Missing Packets.............. 0
Number of RA Packets Dropped............... 0
Number of Policy Errors.................... 0
Radio Signal Strength Indicator............ -48 dBm
Signal to Noise Ratio...................... 50 dB
Client RBACL Statistics:
Number of RBACL Allowed Packets............ 0
Number of RBACL Denied Packets............. 0
Client Rate Limiting Statistics:
Number of Data Packets Received............ 0

--More-- or (q)uit
Number of Data Rx Packets Dropped.......... 0
Number of Data Bytes Received.............. 0
Number of Data Rx Bytes Dropped............ 0
Number of Realtime Packets Received........ 0
Number of Realtime Rx Packets Dropped...... 0
Number of Realtime Bytes Received.......... 0
Number of Realtime Rx Bytes Dropped........ 0
Number of Data Packets Sent................ 0
Number of Data Tx Packets Dropped.......... 0
Number of Data Bytes Sent.................. 0
Number of Data Tx Bytes Dropped............ 0
Number of Realtime Packets Sent............ 0
Number of Realtime Tx Packets Dropped...... 0
Number of Realtime Bytes Sent.............. 0
Number of Realtime Tx Bytes Dropped........ 0

[patoberli]

Ok, this client does have a good signal, but decided to only join with 54 Mbit/s. What kind of Wi-Fi adapter is inside this device?

With a client and AP support 802.11ac it should look like this:

Current Rate..................................... m9 ss2
Supported Rates.................................. 18.0,24.0,36.0,48.0,54.0

But the other issue is probably this:

Avg data Rate.................................... 5000
Burst data Rate.................................. 5000
Avg Real time data Rate.......................... 5000
Burst Real Time data Rate........................ 5000
Avg Uplink data Rate............................. 5000
Burst Uplink data Rate........................... 5000
Avg Uplink Real time data Rate................... 5000
Burst Uplink Real Time data Rate................. 5000

You have enabled QoS and you limit the performance to 5 Mbps per client. Set those values to 0 to reach full throughput. 

[Mahmoud]

I can notice the WIFI adapter support more than 54Mbps but it only stuck with 802.11a with 54Mbps as shown below

I don't know why it is not trying to join with high throughput although it is enabled at WLC and AP

C:\Windows\system32>netsh wlan show drivers

Interface name: Wi-Fi

Driver : Intel(R) Dual Band Wireless-AC 8265
Vendor : Intel Corporation
Provider : Intel
Date : 2021-06-22
Version : 20.70.25.2
INF file : oem61.inf
Type : Native Wi-Fi Driver
Radio types supported : 802.11b 802.11g 802.11n 802.11a 802.11ac
FIPS 140-2 mode supported : Yes
802.11w Management Frame Protection supported : Yes
Hosted network supported : No
Authentication and cipher supported in infrastructure mode:
Open None
Open WEP-40bit
Open WEP-104bit
Open WEP
WPA-Enterprise TKIP
WPA-Enterprise CCMP
WPA-Personal TKIP
WPA-Personal CCMP
WPA2-Enterprise TKIP
WPA2-Enterprise CCMP
WPA2-Personal TKIP
WPA2-Personal CCMP
Open Vendor defined
Vendor defined Vendor defined
IHV service present : Yes
IHV adapter OUI : [00 00 00], type: [00]
IHV extensibility DLL path: C:\Windows\system32\IntelIHVRouter06.dll
IHV UI extensibility ClSID: {00000000-0000-0000-0000-000000000000}
IHV diagnostics CLSID : {00000000-0000-0000-0000-000000000000}
Wireless Display Supported: Yes (Graphics Driver: Yes, Wi-Fi Driver: Yes)

[patoberli]

At the moment I'm also unsure. The classic culprits seem to be correct (WMM allowed, TKIP disabled, WPA1 disabled) with the client connection, although they might be enabled. To be sure, can you output the result of 'show wlan 5'?
That should provide the configuration for the SSID in question.

[Mahmoud]

(Cisco Controller) >show wlan 5

WLAN Identifier.................................. 5
Profile Name..................................... WIFI
Network Name (SSID).............................. WIFI
Status........................................... Enabled
MAC Filtering.................................... Disabled
Broadcast SSID................................... Disabled
AAA Policy Override.............................. Enabled
Network Admission Control
Client Profiling Status
Radius Profiling ............................ Disabled
DHCP ....................................... Disabled
HTTP ....................................... Disabled
Local Profiling ............................. Disabled
DHCP ....................................... Disabled
HTTP ....................................... Disabled
Radius-NAC State............................... Enabled
SNMP-NAC State................................. Disabled
Quarantine VLAN................................ 0
Maximum Clients Allowed.......................... Unlimited
Security Group Tag............................... Unknown(0)
Maximum number of Clients per AP Radio........... 200
ATF Policy....................................... 0
Number of Active Clients......................... 48
Exclusionlist Timeout............................ 60 seconds
Session Timeout.................................. 86400 seconds
User Idle Timeout................................ Disabled
Sleep Client..................................... disable
Sleep Client Timeout............................. 720 minutes
Web Auth Captive Bypass Mode..................... None
User Idle Threshold.............................. 0 Bytes
NAS-identifier................................... none
CHD per WLAN..................................... Enabled
Webauth DHCP exclusion........................... Disabled
Interface........................................ management
Multicast Interface.............................. Not Configured
WLAN IPv4 ACL.................................... unconfigured
WLAN IPv6 ACL.................................... unconfigured
WLAN Layer2 ACL.................................. unconfigured
mDNS Status...................................... Disabled
mDNS Profile Name................................ unconfigured
DHCP Server...................................... Default
Central NAT Peer-Peer Blocking................... Unknown
DHCP Address Assignment Required................. Enabled
Static IP client tunneling....................... Disabled
Tunnel Profile................................... Unconfigured
PMIPv6 Mobility Type............................. none
PMIPv6 MAG Profile........................... Unconfigured
PMIPv6 Default Realm......................... Unconfigured
PMIPv6 NAI Type.............................. Hexadecimal
PMIPv6 MAG location.......................... WLC
Quality of Service............................... Silver
Per-SSID Rate Limits............................. Upstream Downstream
Average Data Rate................................ 0 0
Average Realtime Data Rate....................... 0 0
Burst Data Rate.................................. 0 0
Burst Realtime Data Rate......................... 0 0
Per-Client Rate Limits........................... Upstream Downstream
Average Data Rate................................ 5000 5000
Average Realtime Data Rate....................... 5000 5000
Burst Data Rate.................................. 5000 5000
Burst Realtime Data Rate......................... 5000 5000
Scan Defer Priority.............................. 4,5,6
Scan Defer Time.................................. 100 milliseconds
WMM.............................................. Allowed
WMM UAPSD Compliant Client Support............... Disabled
Media Stream Multicast-direct.................... Disabled
CCX - AironetIe Support.......................... Disabled
CCX - Gratuitous ProbeResponse (GPR)............. Disabled
CCX - Diagnostics Channel Capability............. Disabled
Dot11-Phone Mode (7920).......................... Disabled
Wired Protocol................................... 802.1P (Tag=0)
Passive Client Feature........................... Disabled
Peer-to-Peer Blocking Action..................... Disabled
Radio Policy..................................... All
DTIM period for 802.11a radio.................... 1
DTIM period for 802.11b radio.................... 1
Radius Servers
Authentication................................
Authentication................................
Accounting....................................
Accounting....................................
Interim Update............................. Enabled
Interim Update Interval.................... 0
Framed IPv6 Acct AVP ...................... Prefix
Dynamic Interface............................. Disabled
Dynamic Interface Priority.................... wlan
Local EAP Authentication......................... Disabled
Radius NAI-Realm................................. Disabled
Mu-Mimo.......................................... Enabled
Security

802.11 Authentication:........................ Open System
FT Support.................................... Disabled
Static WEP Keys............................... Disabled
802.1X........................................ Disabled
Wi-Fi Protected Access (WPA/WPA2)............. Enabled
WPA (SSN IE)............................... Disabled
WPA2 (RSN IE).............................. Enabled
TKIP Cipher............................. Disabled
AES Cipher.............................. Enabled
CCMP256 Cipher.......................... Disabled
GCMP128 Cipher.......................... Disabled
GCMP256 Cipher.......................... Disabled
OSEN IE.................................... Disabled
Auth Key Management
802.1x.................................. Enabled
PSK..................................... Disabled
CCKM.................................... Disabled
FT-1X(802.11r).......................... Disabled
FT-PSK(802.11r)......................... Disabled
PMF-1X(802.11w)......................... Disabled
PMF-PSK(802.11w)........................ Disabled
OSEN-1X................................. Disabled
SUITEB-1X............................... Disabled
SUITEB192-1X............................ Disabled
FT Reassociation Timeout................... 20
FT Over-The-DS mode........................ Enabled
GTK Randomization.......................... Disabled
SKC Cache Support.......................... Disabled
CCKM TSF Tolerance......................... 1000
Wi-Fi Direct policy configured................ Disabled
EAP-Passthrough............................... Disabled
CKIP ......................................... Disabled
Web Based Authentication...................... Disabled
Web Authentication Timeout.................... 300
Web-Passthrough............................... Disabled
Mac-auth-server............................... 0.0.0.0
Web-portal-server............................. 0.0.0.0
qrscan-des-key................................
Conditional Web Redirect...................... Disabled
Splash-Page Web Redirect...................... Disabled
Auto Anchor................................... Disabled
FlexConnect Local Switching................... Disabled
FlexConnect Central Association............... Disabled
flexconnect Central Dhcp Flag................. Disabled
flexconnect nat-pat Flag...................... Disabled
flexconnect Dns Override Flag................. Disabled
flexconnect PPPoE pass-through................ Disabled
flexconnect local-switching IP-source-guar.... Disabled
FlexConnect Vlan based Central Switching ..... Disabled
FlexConnect Local Authentication.............. Disabled
FlexConnect Learn IP Address.................. Enabled
Client MFP.................................... Optional
PMF........................................... Disabled
PMF Association Comeback Time................. 1
PMF SA Query RetryTimeout..................... 200
Tkip MIC Countermeasure Hold-down Timer....... 60
Eap-params.................................... Disabled
AVC Visibilty.................................... Disabled
AVC Profile Name................................. None
OpenDns Profile Name............................. None
OpenDns Wlan Mode................................ ignore
Flow Monitor Name................................ None
Split Tunnel Configuration
Split Tunnel................................. Disabled
Call Snooping.................................... Disabled
Roamed Call Re-Anchor Policy..................... Disabled
SIP CAC Fail Send-486-Busy Policy................ Enabled
SIP CAC Fail Send Dis-Association Policy......... Disabled
KTS based CAC Policy............................. Disabled
Assisted Roaming Prediction Optimization......... Disabled
802.11k Neighbor List............................ Disabled
802.11k Neighbor List Dual Band.................. Disabled
802.11v Directed Multicast Service............... Disabled
802.11v BSS Max Idle Service..................... Enabled
802.11v BSS Transition Service................... Disabled
802.11v BSS Transition Disassoc Imminent......... Disabled
802.11v BSS Transition Disassoc Timer............ 200
802.11v BSS Transition OpRoam Disassoc Timer..... 40
DMS DB is empty
Band Select...................................... Enabled
Load Balancing................................... Disabled
Multicast Buffer................................. Disabled
Universal Ap Admin............................... Disabled
Broadcast Tagging................................ Disabled
PRP.............................................. Disabled

Mobility Anchor List
WLAN ID IP Address Status Priority
------- --------------- ------ --------

802.11u........................................ Disabled

MSAP Services.................................. Disabled

Local Policy
----------------
Priority Policy Name
-------- ---------------

Lync State ...................................... Disabled
Audio QoS Policy................................. Silver
Video QoS Policy................................. Silver
App-Share QoS Policy............................. Silver
File Transfer QoS Policy......................... Silver
Lync State ...................................... Disabled
Audio QoS Policy................................. Silver
Video QoS Policy................................. Silver
App-Share QoS Policy............................. Silver
File Transfer QoS Policy......................... Silver
File Transfer QoS Policy......................... Silver
QoS Fastlane Status.............................. Disable
Selective Reanchoring Status..................... Disable
Lobby Admin Access............................... Disabled

Fabric Status
--------------

Fabric status.................................... Disable
Vnid Name........................................
Vnid............................................. 0
Applied SGT Tag.................................. 0
Peer Ip Address.................................. 0.0.0.0
Flex Acl Name....................................
Flex Avc Policy Name.............................

U3-Interface................................... Disable

U3-Reporting Interval.......................... 30