The latest Windows 11 security update has done more than just make the operating system more secure. According to several reports on Microsoft’s forums and social media, the security update also caused Windows users to experience wifi issues. If you’re affected by this issue, you can easily fix it.
How to fix broken WiFi in the December Windows 11 update
According to the various reports made on Microsoft’s forums, the issue appears to be related to the 802.11r standard, which allows for fast roaming between access points on certain Qualcomm and MediaTek adapters. The issue was first noticed in the Windows 11 KB5033375 security update, which started rolling out on December 12. According to some users, there are a couple of steps you can take to resolve the issue and get your wifi working again.
The first possible solution is to disable 802.11r for your access point. You’ll need to figure out what brand of router or access point you have, then look up specific instructions for that device. However, if you aren’t familiar with your router and working within its online systems, this solution may be a tricky one to try.
The second (and easiest) solution is to simply uninstall the update until Microsoft resolves the issue. This is not ideal, as security updates of this nature are designed to help shut down exploits that bad actors can use to gain access to your system. Unfortunately, there isn’t really an alternative at this time.
To remove an installed Windows 11 update, open the Start Menu, select Settings > Windows Update > Update History, and then find the update that you want to uninstall. Select it and choose the Uninstall option to remove the problematic patch. Alternatively, you can always uninstall an update by using the command prompt. To do this, type wusa / uninstall /kb:KB5033375 to remove the security patch completely.
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