Before diving into complex AD edits, ensure you are running your diagnostic tools correctly.
Ensure the _msdcs zone is healthy and populated with records on your primary DC. Dsreplicagetinfo(Pending_Ops Null) Failed Error 0X2105
If the secure channel is broken, you can reset the DC's machine account password using Netdom.exe . Before diving into complex AD edits, ensure you
If the DC has been offline longer than the or if the metadata is severely corrupted, the most reliable path may be to perform a metadata cleanup using ntdsutil , demote the server (forcibly if necessary), and re-promote it. Before diving into complex AD edits