I had a Windows 2000 server running AD on its own hardware. Since the server was having hardware issues I created a virtual machine on a VMware ESX 3.5 server. After shutting down the hardware server I enabled the VM. Everything seemed to be working as usual. We have two AD servers locally and two at a remote location.
However, it seems replication has not been working since the move, which was about a month ago. When trying to force replication through AD Site and Services, I get the error "The RPC server is unavailable" and "The DSA operation is unable to proceed because of a DNS lookup failure."
I have verified that the appropriate DNS entries are located on both DNS servers on both DCs. All other network connectivity is working properly. Does moving a DC to a VM cause this issue? Is it possible to run dcpromo to remove AD and reinstall? Can I recreate the roles on the working server since this one has no connectivity AD-wise?