May's Windows 11 Patch Tuesday Update could cause authentication issues

We recently reported on both Windows 11 and Windows 10 May Patch Tuesday updates and gave you a rundown of what changes and updates to expect. But as it now seems, some users that made the update are experiencing authentication issues such as Network Policy Server (NPS), Routing and Remote access Service (RRAS), and Radius among others as confirmed by Microsoft via the Windows Health Dashboard.

In the report, Microsoft identifies Windows Servers machines used as domain controllers to be the most affected by these bugs.  However, client Windows devices and non-domain controlled Windows Servers have not been affected by these challenges.

Microsoft has indicated that they are currently investigating the matter and will provide an update during the upcoming release where they will hopefully come up with a permanent fix for this issue. But in the meantime, as a workaround, Microsoft recommends manually mapping certificates to a machine account in Active Directory to bypass the authentication challenges. Users can visit Certificate Mapping documentation for a more detailed account of how to go about this process.

 

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