Issues with 802.1x Authentication After Recent Windows Update

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Asked By TechieTurtle42 On

Has anyone else experienced problems connecting to their corporate wireless network after installing the latest Windows updates, specifically KB5068861? It seems to primarily affect devices running Windows 11 versions 24H2 and 25H2, while version 23H2 is having a different issue with KB5068865. In the WLAN-AutoConfig log, I keep seeing event 12013 indicating that 802.1x authentication is failing. The strange part is that none of these devices had this issue before the update, and uninstalling the patch fixes the problem completely.

4 Answers

Answered By FuzzyLogic88 On

I totally understand the concern! I haven't hit this issue yet either, but it feels like the calm before the storm. Hopefully, it doesn’t get to everyone! Fingers crossed!

ChillBytes03 -

Right? It's always a roll of the dice with Microsoft's updates. I'm just hoping it won't affect me when I check my patches.

Answered By DataDynamo On

It sounds like a bug got introduced with that patch, affecting many users. Are you using certificate-based 802.1x or MSCHAPv2? For a temporary fix, you could disable Credential Guard. It’s not a long-term solution, but it may help some in getting back online.

TechieTurtle42 -

We're using device-based certificates, so I'll look into that workaround!

Answered By SystemGuru123 On

Yes, we've had quite a few issues since that update! I created a workaround involving some registry changes and reboots. Here’s a quick rundown:
1. Open an admin terminal and run `reg add "HKLMSYSTEMCurrentControlSetServicesgpsvc" /v Start /t REG_DWORD /d 4 /f`.
2. Rename the 'Group Policy' folder in `C:WindowsSystem32GroupPolicy` to 'GroupPolicy.bak'.
3. Reboot the machine.
4. Set the registry value back to 2 and reboot again.
5. After that, log into VPN and run `GPUpdate /Force`.
Also, watch out for certain Intel drivers in the 200 range; rolling back to the 100s helped a couple of users here.

Answered By WiFiWhisperer On

What kind of access points are you guys using? Might be affecting compatibility with the new updates.

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