Windows 11 cannot connect to the 802.1x wireless for a short time

[eric888888]

Experts, please help to analyze this problem, Windows can access the Internet at first after booting, but after a few seconds, it will be unable to access the Internet.

Windows11 cannot connect to the network for a short time after using Cisco wireless (802.1X is authenticated by ISE), the DEBUG log on WLC is as follows, please help analyze the reason, thank you!

Topology, PC--CISCO AP -- CISCO WLC (version WLC from 8.5.135 to 8.5.182) -- Cisco ISE

The DEBUG log on the WLC is as follows:

Please check the attached txt document

[Scott Fella]

The output is not formatted to make it easy to read.  Why not attach it as a text file?  Also, provide more details on your environment.

[eric888888]

Please check the attached txt document，Thanks

[Scott Fella]

What does the ISE logs show?  You always need to look at both the wireless and the radius. Even for the wireless, you can get information on what has happened. Look up “netsh show wlan reports”. Take a look at all three and see if one of those helps identify the issue. 

** Adding more detail **

1. Capture debug when the client has issues.  It would be better if you started the debug and captured data before that issue and then reproduce the issue.
2. Look at the ISE logs when the issues happens.  Look at the logs when the device was connected and compare that to when the issue happens.
3. On the Windows device, run a netsh show wlan reports and review what the data shows.  You might see other hardware crash that can restart the wireless nic services.

[eric888888]

The TXT is Cisco WLC DEBUG LOG

[Rich R]

What model of network adapter are you using and what is the driver version?

[eric888888]

Intel Wireless-AC 9560

[Rich R]

You still didn't mention the driver version.  Anyway start by making sure it's at least up to date with latest 22.100.1.1 - https://www.intel.com/content/www/us/en/download/19351/windows-10-and-windows-11-wi-fi-drivers-for-intel-wireless-adapters.html 

But that looks like the same driver as the AX201 which still has known issues so the 9560 might be similarly impacted.  If you search the forums for AX201 you'll see the discussion on that.  Intel is working on a new driver which is believed to resolve those issues but it has not been released yet.  If you want to test the fixed driver then you must request it on the Intel forum.

[eric888888]

I use Intel Wireless-AC 9560 and version  22.100.1.1

[eric888888]

I use Intel Wireless-AC 9560 and version  22.100.1.1

[Scott Fella]

Reach out to Intel and request an updated driver version.