I took the DC offline and promoted the BDC (backup domain controller) to PDC to regain control. What did we do incorrectly, and how should the conversion of the PDC to a DC be done? Can we recover the DC that I have offline, or do I have to rebuild it?
Now, aside from that, you could be having a problem with DNS. You will need to make sure that all of the workstations are pointing to the same DNS. You will also need to check to see that the Windows 2000 machine is correctly registering all of the AD names in the DNS. You can use the NETDIAG.exe tool from the Windows 2000 Support Tools (on the Windows 2000 CD) to get started checking out the DNS networking.
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