WLAN Connectivity Problems with Intel 6205 Client in 5Ghz Band

[M_Nees]

After an upgrade of my V4110 from 09.15.05 to V9.21.04 i have problems with Intel 6205 WLAN Clients in 5GHz and AP3825! Either the Client cannot connect to WLAN SSID (in 5GHz) OR it will work fine first but after 3-4 hours the ping latency will increase to 800/900ms. On good days all work fine. Within 2,4 GHz no/never problem occurs. We have the same problem with 9.01.x and 9.12. With 9.15.x the problem never occur / disappear. Now with 9.21 it seems that we have the problem again. WLAN client driver are up to date!

How can i troubleshoot this issue ? Are there any useful log or debug command at EWC ? Is it possible to get a troubleshooting from client site ?

Regards

[Tony1]

Hello Matthias,

we experience the same problem. Not only with Intel 6205 but also with Intel 7260 network adapters.
I think the network adapter is scanning for other wireless networks (leaving WiFi channel) and therefore ping response times increase. But I see that problem in both frequency bands and also with version 8 controller code.

[Doug]

Hello Matthias,

There are a few things you can do...

1. I would open a ticket with the GTAC so we can get everything documented and start data collection.

2. You can get wifi traces from an access point (in this case I would suggest using a spare ap near the problematic one) during the time of a failiure- https://gtacknowledge.extremenetworks.com/articles/How_To/Using-Real-Capture-to-capture-wireless-tra...

3. I would collect the AP trace file from the suspect ap during the time of failure - https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-Collect-Access-Point-Logging-Inform...

4. Generate a Tech Support and note the WLAN-Service you were attached and user Role applied to the client during the issue. - https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-Collect-a-Tech-Support-File-From-a-...