Solved: WLC 2504 5Ghz Enabled SSIDs Not Visible in Available Networks

kristianus.gencar · ‎01-31-2022

I using WLC 2504 with Access Points AIR-CAP2702E-F-K9. My office need 5Ghz enable, because 2.4Ghz is so crowded at here. I created a new WLAN (SSID) with Radio 802.11a only to force all the laptops to use 5Ghz band to check what it makes difference. The SSID is not visible as a available network at the client if the SSID radio is set to '802.11a only' though it is marked to broadcast ssid. 802.11a is also enabled in sections of Wireless. My regulatory domain is -F Indonesia. Please give me suggestion to solve it. Thanks.

(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.5.171.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1
Firmware Version................................. PIC 20.0

OUI File Last Update Time........................ Sun Sep 07 10:44:07 IST 2014

Build Type....................................... DATA + WPS

System Name...................................... Controller-MSIG
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1279
IP Address....................................... 10.9.11.2
IPv6 Address..................................... ::
Last Reset....................................... Software reset
System Up Time................................... 0 days 2 hrs 51 mins 14 secs
System Timezone Location......................... (GMT +7:00) Saigon, Hanoi, Bangkok, Jakatar

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System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180

Configured Country............................... ID - Indonesia
Operating Environment............................ Commercial (0 to 40 C)
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +36 C
External Temperature............................. +41 C
Fan Status....................................... 3800 rpm

State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 3
Number of Active Clients......................... 0

OUI Classification Failure Count................. 1

Memory Current Usage............................. 39
Memory Average Usage............................. 39
CPU Current Usage................................ 0
CPU Average Usage................................ 0

Flash Type....................................... Compact Flash Card

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Flash Size....................................... 1073741824

Burned-in MAC Address............................ DC:CE:C1:10:D6:E0
Maximum number of APs supported.................. 75
System Nas-Id.................................... Controller-MSIG
WLC MIC Certificate Types........................ SHA1/SHA2

(Cisco Controller) >show ap summary

Number of APs.................................... 1

Global AP User Name.............................. admin
Global AP Dot1x User Name........................ Not Configured

AP Name Slots AP Model Ethernet MAC Location Country IP Address Clients DSE Location
------------------------------ ----- -------------------- ----------------- -------------------- ---------- --------------- ------- --------------
AP-7_AP706d.15d6.c480 2 AIR-CAP2702E-F-K9 70:6d:15:d6:c4:80 default location ID 10.9.11.254 0 [0 ,0 ,0 ]

(Cisco Controller) >show 802.11a

802.11a Network.................................. Enabled
11acSupport...................................... Enabled
11nSupport....................................... Enabled
802.11a Low Band........................... Enabled
802.11a Mid Band........................... Disabled
802.11a High Band.......................... Disabled
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

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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

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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 0-9 .............................. 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

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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.................................. 149
Default Tx Power Level........................... 0
DTPC Status..................................... Enabled
Fragmentation Threshold.......................... 2346
RSSI Low Check................................... Disabled

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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

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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) >show logging

*spamApTask2: Jan 31 12:52:05.484: %LWAPP-3-VENDOR_PLD_VALIDATE_ERR: spam_lrad.c:12016 Validation of SPAM_VENDOR_SPECIFIC_PAYLOAD(185) with length=9 failed - AP 70:ea:1a:45:bd:d0
*spamApTask6: Jan 31 12:49:58.661: %CAPWAP-3-DTLS_CLOSED_ERR: capwap_ac_sm.c:7130 70:ea:1a:45:bd:d0: DTLS connection closed forAP 10:9:11:254 (60488), Controller: 10:9:11:2 (5246) Echo Timer Expiry
*spamApTask6: Jan 31 12:49:58.659: %CAPWAP-3-ECHO_ERR: capwap_ac_sm.c:7875 Did not receive heartbeat reply; AP: 70:ea:1a:45:bd:d0
*emWeb: Jan 31 12:10:29.293: %LOG-3-Q_IND: spam_lrad.c:72282 The system is unable to find WLAN 3 to be deleted; AP 70:ea:1a:45:bd:d0
*spamReceiveTask: Jan 31 12:00:47.619: %LWAPP-3-WLAN_ERR2: spam_lrad.c:72282 The system is unable to find WLAN 3 to be deleted; AP 70:ea:1a:45:bd:d0[...It occurred 2 times/sec!.]
*spamReceiveTask: Jan 31 11:59:41.423: %LWAPP-3-WLAN_ERR2: spam_lrad.c:72282 The system is unable to find WLAN 3 to be deleted; AP 70:ea:1a:45:bd:d0
*emWeb: Jan 31 11:07:57.368: %CLI-3-LOGIN_FAILED: cliutil.c:709 Login failed. User:adminad, Service type:-8. Username/Password length must be between 3 and 128 characters.
*emWeb: Jan 31 11:07:57.368: %LOG-3-Q_IND: spam_lrad.c:72282 The system is unable to find WLAN 3 to be deleted; AP 70:ea:1a:45:bd:d0
*spamReceiveTask: Jan 31 11:01:58.768: %LWAPP-3-WLAN_ERR2: spam_lrad.c:72282 The system is unable to find WLAN 3 to be deleted; AP 70:ea:1a:45:bd:d0[...It occurred 2 times/sec!.]
*spamReceiveTask: Jan 31 11:00:56.888: %LWAPP-3-WLAN_ERR2: spam_lrad.c:72282 The system is unable to find WLAN 3 to be deleted; AP 70:ea:1a:45:bd:d0
*spamApTask2: Jan 31 10:59:05.386: %LWAPP-3-VENDOR_PLD_VALIDATE_ERR: spam_lrad.c:12016 Validation of SPAM_VENDOR_SPECIFIC_PAYLOAD(185) with length=9 failed - AP 70:ea:1a:45:bd:d0
*bcastDataTask: Jan 31 10:58:43.491: %APF-3-INVALID_MCAST_MODE_ADDR: apf_net.c:5070 Received ipv6 capwap multicast packet source: (fe80::dece:c1ff:fe10:d6e0) destination: (::) whencapwap multicast mode is multicast with unconfigured ipv6 address.
*nim_t: Jan 31 10:49:16.653: %SIM-3-PORT_UP: sim.c:13902 Physical port 1 is up!.
*cpuAclLogTask: Jan 31 10:49:16.389: %ACL-3-CPU_ACL_LOG_UCAPL_DISABLED: acl.c:1361 UCAPL disabled. CPU ACL hits will not be logged.

kristianus.gencar · ‎02-01-2022

Solve after enable Wireless -> Mesh -> Backhaul Client Access. Thanks for help & response.

View solution in original post

Scott Fella · ‎01-31-2022

Make sure that you have the correct antennal that supports 5ghz connected to the ap. Since your ap is a "E" (external), just need to validate you have a supported antenna connected or else you will not see the SSID unless you are a few inches away.

Take a look at the following command:

show ap channel <ap-name> or show advanced 802.11a channel

Make sure you see the channels in the allowed list.

-Scott
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jagan.chowdam · ‎01-31-2022

I would verify

Client capabilities to make sure it supports 5 GHz band
If you have AP groups - Make sure to add the newly created 5 GHz only SSID to the AP group as well
Disable the other SSIDs and see if the client connects to the new SSID

CJ

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Leo Laohoo · ‎01-31-2022

@kristianus.gencar wrote:

System Timezone Location......................... (GMT +7:00) Saigon, Hanoi, Bangkok, Jakatar

Indonesia Regulatory Domain is "-F", Thailand is "-S" and Vietnam is "-E".

What happens if you ONLY have Indonesia configured?

kristianus.gencar · ‎02-01-2022

Solve after enable Wireless -> Mesh -> Backhaul Client Access. Thanks for help & response.