topic Re: Wireless issues in Wireless

Wireless issues

Ranamohit54 — Fri, 01 Nov 2024 02:38:47 GMT

I have a situation where the user is able is having slow connection issues when in a room connected to the same AP . but its perfectly fine when outside that room .

RSSI and SNR are -51 and 44 db respectively .
The AP is just outside the room. Users connected to the same AP outside the room doesnt have any issues at all. Connection speed when checked on WLC is 400mbps when outside the room for the user. and when inside the room its 1mbps. I have checked with multiple users the issue remains.

There are no channel interference i can confirm that. this AP has the same profile as that other AP's on the same floor. nothing different on this particular AP.

I have checked the WLAN report , and compared for both user is inside the room and outside the room . i couldnt find anything that may be creating the issue.

I can provide you the debug reports if someone can please help.

Re: Wireless issues

Ranamohit54 — Fri, 01 Nov 2024 02:46:29 GMT

Can someone please assist or guide through. i am still new. and this is even weird for my seniors as well

Re: Wireless issues

Leo Laohoo — Fri, 01 Nov 2024 04:48:58 GMT

@Ranamohit54 wrote:
slow connection issues when in a room connected to the same AP . but its perfectly fine when outside that room

There is no guarantee that a user inside a room is/will connect to the AP inside the room.

@Ranamohit54 wrote:
Connection speed when checked on WLC is 400mbps when outside the room for the user. and when inside the room its 1mbps.

Without any proof that the wireless client is connected to the inside/outside AP, all bets are off.

I would like to check what band of the inside AP the wireless NIC is joined to. Is the wireless NIC connected to 2.4 Ghz or 5.0 Ghz?

Next, check the RF of the AP, Clean Air of that AP.

Re: Wireless issues

Ranamohit54 — Fri, 01 Nov 2024 07:59:03 GMT

Thank you for replying Leo 🙂

There is no guarantee that a user inside a room is/will connect to the AP inside the room - I have checked on the wlc , its shows that its connected to the same AP. That AP is just outside the room . there is no AP inside the room .

At the end of the day, the wireless client makes the ultimate decision which AP to join. If the wireless NIC driver has never been updated or the wireless NIC driver is buggy, then there is a strong chance the WiFi experience will be bad.--- But why is it happening to everyone who connects to the wifi within the room have issues . they all connects to the same access point and why they all have good connection speed when they are just outside the room connecting to the same AP.

I have checked the check the RF of the AP, Clean Air of that AP. There are no issues been observed on that side.

Re: Wireless issues

Ranamohit54 — Fri, 01 Nov 2024 07:59:38 GMT

the wireless NIC connects to 5ghz

Re: Wireless issues

Ranamohit54 — Fri, 01 Nov 2024 08:01:21 GMT

I have attached a debug report. Is it possible that if you can review and see if there are any issues . may be i am unable to clearly view it.

Thanks in advance

Re: Wireless issues

MHM Cisco World — Fri, 01 Nov 2024 08:48:02 GMT

Can you share

Show wireless client mac-address xxxxxxx detail

MHM

Re: Wireless issues

Mark Elsen — Fri, 01 Nov 2024 08:53:45 GMT

@Ranamohit54 wrote : >I have attached a debug report

- Below is the output from that debug report when parsed with Wireless Debug Analyzer
(Show All flag was checked)

Time	Task	Translated
Connection attempt #1
Connection attempt #2
2024/11/01 10:39:20.086	client-orch-sm	Client roamed to a new AP/BSSID: BSSID 5c83.8ffe.fece, WLAN AKLC-Corp, Slot 1 AP 5c83.8ffe.fec0, CCENLIBL03AP08, old BSSID 5c83.8feb.d0fe
2024/11/01 10:39:20.086	dot11	Association success for client, assigned AID is: 3. Client performed fast roam.
2024/11/01 10:39:20.091	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:39:20.092	client-orch-state	Entering IP learn state
2024/11/01 10:39:20.092	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #3
2024/11/01 10:39:34.398	client-orch-sm	Client roamed to a new AP/BSSID: BSSID 78bc.1a74.e66e, WLAN AKLC-Corp, Slot 1 AP 78bc.1a74.e660, CCENLIBL03AP15, old BSSID 5c83.8ffe.fece
2024/11/01 10:39:34.399	dot11	Association success for client, assigned AID is: 3. Client performed fast roam.
2024/11/01 10:39:34.427	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:39:34.427	client-orch-state	Entering IP learn state
2024/11/01 10:39:34.427	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #4
2024/11/01 10:39:47.119	client-orch-sm	Client roamed to a new AP/BSSID: BSSID 5c83.8ffe.f97e, WLAN AKLC-Corp, Slot 1 AP 5c83.8ffe.f970, CCENLIBL03AP12, old BSSID 78bc.1a74.e66e
2024/11/01 10:39:47.119	dot11	Association success for client, assigned AID is: 4. Client performed fast roam.
2024/11/01 10:39:47.124	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:39:47.124	client-orch-state	Entering IP learn state
2024/11/01 10:39:47.124	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #5
2024/11/01 10:46:10.691	client-orch-sm	Client roamed to a new AP/BSSID: BSSID 78bc.1a74.e66e, WLAN AKLC-Corp, Slot 1 AP 78bc.1a74.e660, CCENLIBL03AP15, old BSSID 5c83.8ffe.f97e
2024/11/01 10:46:10.691	dot11	Association success for client, assigned AID is: 4. Client performed fast roam.
2024/11/01 10:46:10.696	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:46:10.697	client-orch-state	Entering IP learn state
2024/11/01 10:46:10.697	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #6
2024/11/01 10:46:18.156	client-orch-sm	Client roamed to a new AP/BSSID: BSSID 5c83.8ffb.213e, WLAN AKLC-Corp, Slot 1 AP 5c83.8ffb.2130, CCENLIBL03AP09, old BSSID 78bc.1a74.e66e
2024/11/01 10:46:18.157	dot11	Association success for client, assigned AID is: 7. Client performed fast roam.
2024/11/01 10:46:18.161	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:46:18.162	client-orch-state	Entering IP learn state
2024/11/01 10:46:18.162	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #7
2024/11/01 10:46:31.242	client-orch-sm	Client roamed to a new AP/BSSID: BSSID 5c83.8ffe.fece, WLAN AKLC-Corp, Slot 1 AP 5c83.8ffe.fec0, CCENLIBL03AP08, old BSSID 5c83.8ffb.213e
2024/11/01 10:46:31.243	dot11	Association success for client, assigned AID is: 3. Client performed fast roam.
2024/11/01 10:46:31.248	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:46:31.248	client-orch-state	Entering IP learn state
2024/11/01 10:46:31.249	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #8
2024/11/01 10:46:37.179	client-orch-sm	Client roamed to a new AP/BSSID: BSSID a0ec.f95a.fa1e, WLAN AKLC-Corp, Slot 1 AP a0ec.f95a.fa10, CCENLIBL03AP05, old BSSID 5c83.8ffe.fece
2024/11/01 10:46:37.179	dot11	Association success for client, assigned AID is: 3. Client performed fast roam.
2024/11/01 10:46:37.184	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:46:37.185	client-orch-state	Entering IP learn state
2024/11/01 10:46:37.185	client-orch-state	Client reached RUN state, connection completed.
Connection attempt #9
2024/11/01 10:49:14.356	client-orch-sm	Client made a new Association to an AP/BSSID: BSSID 5c83.8ffb.193e, WLAN AKLC-Corp, Slot 1 AP 5c83.8ffb.1930, CCENLIBL03AP06, old BSSID a0ec.f95a.fa1e
2024/11/01 10:49:14.357	dot11	Association success for client, assigned AID is: 8. Client performed fast roam.
2024/11/01 10:49:14.564	client-auth	Starting EAPOL 4-Way Handshake
2024/11/01 10:49:14.574	client-keymgmt	Negotiated the following encryption mechanism: AKM:FT-DOT1X Cipher:CCMP WPA Version: WPA2
2024/11/01 10:49:14.575	client-orch-state	Starting Mobility Anchor discovery for client
2024/11/01 10:49:14.575	client-orch-state	Entering IP learn state

Re: Wireless issues

MHM Cisco World — Fri, 01 Nov 2024 09:11:00 GMT

As @Leo Laohoo mention the client join to two AP (as @Mark Elsen show above)

This menaing that AP outside have good RF than inside

MHM

Re: Wireless issues

Flavio Miranda — Fri, 01 Nov 2024 12:49:33 GMT

@Ranamohit54

Sounds to me like sticky client problem. People walk to this room but remain connected wherever they were priviously. You should consider move the AP to inside the room.

In order to test, ask people, or do yourself, to turn the wifi off while going to the room and turn the wifi on only inside the room.

Re: Wireless issues

Ranamohit54 — Sat, 02 Nov 2024 01:51:57 GMT

Client MAC Address : 8cb8.7ea3.9b7a
Client MAC Type : Universally Administered Address
Client DUID: NA
Client IPv4 Address : 10.120.92.190
Client IPv6 Addresses : fe80::2857:f230:e747:4c78
Client Username : AKLC\choit
AP MAC Address : a0ec.f95a.fa10
AP Name: CCENLIBL03AP05
AP slot : 1
Client State : Associated
Policy Profile : AKLC-Corp_Cen_Library
Flex Profile : N/A
Wireless LAN Id: 1
WLAN Profile Name: AKLC-Corp
Wireless LAN Network Name (SSID): AKLC-Corp
BSSID : a0ec.f95a.fa1e
Connected For : 301 seconds
Protocol : 802.11ac
Channel : 132
Client IIF-ID : 0xa0000395
Association Id : 1
Authentication Algorithm : Open System
Idle state timeout : N/A
Re-Authentication Timeout : 28800 sec (Remaining time: 28292 sec)
Session Warning Time : Timer not running
Input Policy Name : None
Input Policy State : None
Input Policy Source : None
Output Policy Name : None
Output Policy State : None
Output Policy Source : None
WMM Support : Enabled
U-APSD Support : Disabled
Fastlane Support : Disabled
Client Active State : Active
Power Save : OFF
Current Rate : m7 ss2
Supported Rates : 6.0,12.0,18.0,24.0,36.0,48.0,54.0
AAA QoS Rate Limit Parameters:
QoS Average Data Rate Upstream             : 0 (kbps)
QoS Realtime Average Data Rate Upstream    : 0 (kbps)
QoS Burst Data Rate Upstream               : 0 (kbps)
QoS Realtime Burst Data Rate Upstream      : 0 (kbps)
QoS Average Data Rate Downstream           : 0 (kbps)
QoS Realtime Average Data Rate Downstream : 0 (kbps)
QoS Burst Data Rate Downstream             : 0 (kbps)
QoS Realtime Burst Data Rate Downstream    : 0 (kbps)
Mobility:
Move Count                  : 0
Mobility Role               : Local
Mobility Roam Type          : L2
Mobility Complete Timestamp : 11/01/2024 09:09:53 NZDT
Client Join Time:
Join Time Of Client : 11/01/2024 10:50:57 NZDT
Client State Servers : None
Client ACLs : None
Policy Manager State: Run
Last Policy Manager State : IP Learn Complete
Client Entry Create Time : 6633 seconds
Policy Type : WPA2
Encryption Cipher : CCMP (AES)
Authentication Key Management : FT-802.1x
Transition Disable Bitmap : None
User Defined (Private) Network : Disabled
User Defined (Private) Network Drop Unicast : Disabled
Encrypted Traffic Analytics : No
Protected Management Frame - 802.11w : No
EAP Type : PEAP
VLAN Override after Webauth : No
VLAN : AKLC-Corp_Cen_Library
Multicast VLAN : 0
WiFi Direct Capabilities:
WiFi Direct Capable           : No
Central NAT : DISABLED
Session Manager:
Point of Attachment : capwap_904001f0
IIF ID             : 0x904001F0
Authorized         : TRUE
Session timeout    : 28800
Common Session ID: 14FAD20A0020A10DE431E97C
Acct Session ID : 0x00000000
Last Tried Aaa Server Details:
        Server IP : 10.183.1.55
Auth Method Status List
        Method : Dot1x
                SM State         : AUTHENTICATED
                SM Bend State    : IDLE
Local Policies:
        Service Template : wlan_svc_AKLC-Corp_Cen_Library_local (priority 254)
                Vlan Group       : AKLC-Corp_Cen_Library
                Absolute-Timer   : 28800
Server Policies:
Resultant Policies:
                VLAN Name        : VLAN0621
                Vlan Group       : AKLC-Corp_Cen_Library
                VLAN             : 621
                Absolute-Timer   : 28800
DNS Snooped IPv4 Addresses : None
DNS Snooped IPv6 Addresses : None
Client Capabilities
CF Pollable : Not implemented
CF Poll Request : Not implemented
Short Preamble : Not implemented
PBCC : Not implemented
Channel Agility : Not implemented
Listen Interval : 0
Fast BSS Transition Details :
Reassociation Timeout : 20
11v BSS Transition : Implemented
11v DMS Capable : No
QoS Map Capable : Yes
FlexConnect Data Switching : N/A
FlexConnect Dhcp Status : N/A
FlexConnect Authentication : N/A
Client Statistics:
Number of Bytes Received from Client : 46044229
Number of Bytes Sent to Client : 113117411
Number of Packets Received from Client : 139458
Number of Packets Sent to Client : 170814
Number of Policy Errors : 0
Radio Signal Strength Indicator : -55 dBm
Signal to Noise Ratio : 41 dB
Fabric status : Disabled
Radio Measurement Enabled Capabilities
Capabilities: Neighbor Report, Passive Beacon Measurement, Active Beacon Measurement, Table Beacon Measurement
Client Scan Report Time : Timer not running
Client Scan Reports
Assisted Roaming Neighbor List
Nearby AP Statistics:
EoGRE : No/Simple client
Max Client Protocol Capability: Wi-Fi6 (802.11ax)
WiFi to Cellular Steering : Not implemented
Cellular Capability : N/A
Advanced Scheduling Requests Details:
Apple Specific Requests(ASR) Capabilities/Statistics:
    Regular ASR support: DISABLED

There is only 1 AP. i.e CCENLIBL03AP05. I am not sure why speed is 400 mbps when the user is connected to same AP (CCENLIBL03AP05 ) outside the room and 1mbps inside the room when connected to this Ap (CCENLIBL03AP05) .

defintely the user will be connected to this AP as its the only one nearby and rest of them are far.

Re: Wireless issues

Leo Laohoo — Sat, 02 Nov 2024 02:13:18 GMT

What is the driver version of the wireless NIC?

What is the firmware of the WLC (include SMU/APSP version)?

What is the model of this AP in question?

What is the uptime of "CCENLIBL03AP05"?

Re: Wireless issues

soris48021 — Sat, 02 Nov 2024 10:21:47 GMT

I’m experiencing a similar issue with one of our APs. Users connected to the same AP outside the room have great speeds, but inside, they’re getting really slow connections. The RSSI and SNR are decent, so it’s puzzling. I’ve ruled out channel interference and confirmed the AP profile is consistent with others on the floor. I’d love to see if anyone has any ideas or solutions, especially if you’ve encountered this before. I can share debug reports too if that would help!

Re: Wireless issues

jmanzanera — Sun, 03 Nov 2024 21:01:17 GMT

Quick question here,
Why are you using 6,0 data rate ? Is any reason to do that?

Supported Rates : 6.0,12.0,18.0,24.0,36.0,48.0,54.0

I suggest to remove 6.0 and try it again. Probably you will need to see from the client itself the difference between the both locations with a wireless software.

You can also get the information from the AP itself with the command show dot11 client - please run the command when the connection is good and whent he connection is bad. You should see some difference here.

Re: Wireless issues

Rich R — Sun, 10 Nov 2024 15:46:45 GMT

> there is no AP inside the room .
Then the walls to the room must be radio-opaque and blocking the signal from the AP.
In that case your only option is to install an AP in the room.
You should have conducted a post-install survey to check for coverage of your installation. Then you would have spotted any spaces with inadequate cover.

Re: Wireless issues

travisstacy759 — Sun, 10 Nov 2024 19:23:32 GMT

Thank you for sharing such detailed information! You've already covered a lot of critical areas, which helps narrow down the possible causes. Given the significant drop in speed when users move inside the room, it sounds like there might be a physical or environmental factor within that specific room impacting the signal, even if the RSSI and SNR values appear solid.

Here are a few things to consider trying:

Reflection or Absorption: Sometimes, certain materials in walls, furniture, or even particular objects can reflect or absorb signals differently, causing drastic speed drops. If feasible, try moving some objects or repositioning the AP to see if it affects the connection quality.
Multipath Interference: Even without channel interference, signal reflection within the room can cause multipath issues, leading to inconsistent performance. This is often observed in rooms with lots of metallic or reflective surfaces.
Testing with Another AP: If possible, you could test with a different AP temporarily to rule out any specific hardware-related quirks with the current AP.
Lowering Power Output: Sometimes reducing the AP’s transmit power can improve performance within confined spaces as it might reduce signal reflection.

If you can provide the debug reports, that would be great! We’ll look out for any clues in those logs that might explain this room-specific connectivity issue.

Re: Wireless issues

Scott Fella — Mon, 11 Nov 2024 19:02:17 GMT

@soris48021 why not open a new thread so that folks don't get confused on who asked what. Every environment is different and what you are experiencing might not be the same case as what the OP is experiencing.

Re: Wireless issues

Scott Fella — Mon, 11 Nov 2024 19:05:29 GMT

Like what others have mentioned, it might be the material in that wall causing your issue. You can try to move that ap over close to the door, so its not having to penetrate that wall, but the door and window. You also can test, but putting an ap inside that room and testing signal outside the room to see how your signal really is. Reverse engineer it so it makes sense.

Re: Wireless issues

activadorr1 — Thu, 19 Jun 2025 04:09:16 GMT

Use RF analysis tools to measure signal strength, noise levels, and interference patterns within the room and surrounding areas.