[German]A brief note for Windows Server 2022 administrators who are experiencing issues after installing the March 8, 2022 security update KB5011497. This update can cause serious issues with remote services, because certain roles are no longer available after installing this update. I have received now a tip for a solution by a blog reader.
Issues with update KB5011497
I had covered it in the blog post Patchday: Windows 11/Server 2022 updates (March 8, 2022). As of March 8, 2022, Microsoft has released cumulative update KB5011497 for Windows Server 2022. Shortly after the release of this security update, German blog reader Sebastian R. had contacted me via email and reported problems. After installing the Windows updates, the remote connections did not work anymore. Sebastian writes about the error pattern that it was noticed quite quickly that Windows services belonging to the roles mentioned above were missing on both systems. Specifically, the following services were missing:
- Remote Desktop Connection Broker (see)
- Remote Desktop Management (might be RDS)
So the reader checked the installed Windows roles and it turned out that the Remote Desktop Connection Broker role is not installed at all, or is detected as no longer installed. Reinstalling didn't fix the issue. So the error is reproducible and was only fixable by uninstalling the above update.
I had covered the problem in the article Windows Server 2022: March 2022 update KB5011497 breaks remote desktop gateway role. In addition, the German language version of the article is linked at the top of this post. After publishing I have received feedback on both articles confirming this observation. On Facebook, I also got feedback from two administrator groups that there were problems there as well.
Also blog reader Gabriele Del Giovine also writes that update KB5011497 also breaks features such as Server Manager, Event Viewer, and any features that rely on some APIs that access the Windows protocols.
Fix: Install .NET4.8 Update KB5011258
Blog reader Claus and Jonas from Denmark then left a comment (thanks for that) and wrote, a colleague of him had opened a support request at Microsoft because of the problems and then got an explanation. Microsoft "forgot" to check a necessary requirements for this update. The errors outlined above occur when the .NET4.8 update KB5011258 from February 4, 2022 is missing.
This update is missing on freshly installed machines. The reader writes that affected admins should install the .NET4.8 update KB5011258. Then the error should be gone. The update can be downloaded from the Microsoft Update Catalog.
Addendum: The issue is still open with April 12, 2022 security patches, see Windows Server 2022: Update KB5012604 breaks Remote Desktop Gateway.
Patchday: Windows 11/Server 2022 updates (March 8, 2022)
Windows Server 2022: March 2022 update KB5011497 breaks remote desktop gateway role
Windows Server 2022: Update KB5012604 breaks Remote Desktop Gateway
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