We have had a couple of Windows 11 computers on our domain for a year or so and have just replaced a number of our old Win 10 units with new hardware running Win 11. I have noticed that these PC's are reporting in as Up to Date from WSUS. Initially we thought that the clients were at fault and updated ADMX/GPO's however having looked further it would appear as though the update downloads are not completing on the WSUS server.
From our observations it looks like the downloads are starting but as they get to 100% appear to get stuck. Looking at the security updates section it is the Cumulative Updates for Windows 11 Version 22H2 that are failing to download. All other updates appear to be downloading OK. I have updating the MIME types in IIS and performed an IIS restart.
In the event viewer Application log I'm seeing Event 10032 (The server is failing to download some updates) and Event 364 (Content download failed. Reason: File cert verification failure).
Server is Windows Server 2012R2. I can appreciate that this is now an unsupported OS however the updates have been failing since March.
Any help would be greatly appreciated. Thanks.