NTDS Settings gone. Really need some help.

[rakem]

we have one domain name with multiple sites, we have recently upgraded a server, which included changing its name.

Now the NTDS Settings for one of the DC of a site has gone, which means there is no replication between this site and anything else. The server in question is a DC and also a GC, it was the only DC in the site. It is even missing from the Domain Controllers Group in Active Directory, i managed to manually add it back into that group but this has not helped at all. I really need help on this, i cant understand how the NTDS settings went missing.

Can anyone please suggest any fixes for this please!!!

thanks

[cluberti]

If the server held all of the FSMO roles, this will happen (and thus you should always have FSMO roles spread out when possible, and also have multiple copies of the GC in a domain as well!!!). You'll need to use ntdsutil to get the roles seized onto another server.

[rakem]

this server did not hold any roles at all.

[cluberti]

Was it the only DC in the site, or in the domain?