Microsoft has confirmed a new Windows Server 2016 bug that breaks Domain Controller lookup for hostnames longer than 15 characters.

Microsoft confirmed a Windows Server 2016 issue that can break domain controller discovery after installing KB5087537.

Microsoft is investigating LSASS memory leaks (caused by Windows Server updates released during the November Patch Tuesday) that might lead to freezes and restarts on some domain controllers. LSASS ...

Microsoft says the April 2025 security updates are causing authentication issues on some Windows Server 2025 domain controllers. The list of impacted platforms includes Windows Server 2016, Windows ...