Microsoft has addressed a connectivity issue that affected certain Windows Server 2025 domain controllers, which became unreachable after a restart, consequently disrupting applications and services running on the network.
In April 2025, Microsoft noted that this problem arose because affected servers were loading the default firewall profile instead of the domain network profile post-restart. This misconfiguration hindered the servers from properly managing network traffic, resulting in accessibility issues for applications and services on those domain controllers or other devices within the same domain.
To mitigate this, the company issued a security update (KB5060842) during the June 2025 Patch Tuesday, which resolves the connectivity problems for Windows Server 2025 domain controllers.
For administrators who cannot apply the update immediately, a temporary workaround is available. They can manually restart the network adapter on affected servers using the PowerShell command Restart-NetAdapter. However, this workaround will need to be carried out after each server restart until the update is installed, as the issue recurs with each restart.
Additionally, Microsoft has fixed another problem where some users were unable to log in with Windows Hello after the installation of the KB5055523 security update released earlier in April 2025. This previous update already experienced issues causing authentication problems on systems with Credential Guard and the Kerberos PKINIT pre-authentication protocol.
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