The RPC server is unavailable.

I have one Domain Controller that won't allow me to complete Windows Health Checks. The other two Domain Controllers(in the same domain) allow the checks fine. I always get the "The RPC server is unavailable." when I complete the checks on this server using the same credentials as the other server. The server name can be resolved and responds to pings etc from the Serverscheck server.



Any suggestions?

http://kb.serverscheck.com/index.php?page=index_v2&id=1&c=1

Figured it out. It was a bad PTR record for that IP on the DNS server. NSlookup for the IP would resolve to the wrong name.