One of the most helpful native tools for troubleshooting problems with domain controllers is DCDiag. In this article, I will show you the basics of using this helpful tool. DCDiag was introduced early ...

Microsoft has confirmed a new known issue affecting Windows Server 2016 systems that causes domain controller lookups to fail after installing the KB5087537 May 2026 security update. Windows Server ...

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

In the first part of this series, I talked about how you could recover your server after a system volume failure. In this article, I want to turn my attention to some special procedures used for ...