I'm running a Win2k3 server as a global catalog DC for our company that also runs Exchange. We had an issue with Exchange/AD corruption a few weeks ago and I had to restore the system state using NTBackup. Somehow, AD didn't fully cooperate with me, and so I then demoted the DC using dcpromo and reinstalled it from another global catalog DC in a remote office.
The problem is that now, the restored DC is giving me continual replication warnings that it cannot replicate with the corrupted, previous version of itself that it thinks is still active. In AD Sites and Services, my DC has two "NTDS Settings"....one for my secondary DC, and one named "NTDS Settings
CNF:1569a4a2-45b2-47cb-8038-06c947043d64", which is the corrupt version of itself.
I've attempted to delete this setting, but it will not go away. I've used ntdsutil.exe to try to clean up my DC's metadata, and when I try to delete the bad version, I get an error: The connected server will not remove its own metadata.
Any thoughts on how to fix this?