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 ...

When you log in to a Windows 11/10 domain-joined machine and try to connect to the already mapped drive or multiple client workstations are unable to correctly ...

As a bit of background, all our systems are configured to auto-enroll certificates and we are using the built-in V1 certicates for our system, so specifically the Computer and Domain Controller ...

Microsoft is investigating a new known issue causing enterprise domain controllers to experience Kerberos sign-in failures and other authentication problems after installing cumulative updates ...

Had a power cut today, which took out one of my ESXi hosts on which a Server 2019 domain controller VM was running. It started up on the second ESXi server but now it's not working properly. For ...

Earlier this week I saw a situation in which someone with a small, single-domain controller network performed a restoration of their domain controller. This restoration effectively reverted the Active ...

This post provides the most suitable solutions to the issue whereby Group Policies are not applying as well as not replicating between Domain Controllers in a typical Windows Server environment. If ...

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’s May Patch Tuesday update is triggering authentication errors. Microsoft is alerting customers that its May Patch Tuesday update is causing authentications errors and failures tied to ...

In two previous articles (here and here) I shared some classic Active Directory mistakes people have made that got their companies into serious trouble. Here’s another mistake that on the face of it ...

You shouldn’t change domain controller network settings, but here’s how to do it if you must Your email has been sent Active Directory domain controllers (DCs) are probably the most change-averse ...