I have two AD sites. The PDC for the Windows 2000 domain died, a tech rebuilt the machine, gave it the same name as the original PDC, promoted it to a DC and set it to have the global catalog. It has never gotten the global catalog. I think it is because the original machine was never removed from the site in AD Sites and Services. Should I demote it, remove it from the site and repromote it?
When the tech rebuilt the server, it received a new GUID even though the name was the same. Assuming that you have other domain controllers in place for your domain, you should DCpromo the rebuilt server down, then perform a metadata cleanup to remove all references to it, and then run DCpromo again to allow it to rejoin the domain correctly.
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