Both Windows 2003 sp1 dc's are getting this error:
Domain Controller Diagnosis
Performing initial setup:
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\EX2
Starting test: Connectivity
The host 184b1f1a-f748-4e27-afa0-8f5ce1dffe49._msdcs.domian.net could not be resolved to an
IP address. Check the DNS server, DHCP, server name, etc
Although the Guid DNS name
(184b1f1a-f748-4e27-afa0-8f5ce1dffe49._msdcs.domain.net) couldn't be
resolved, the server name (server.domain.net) resolved to the IP address
(172.16.3.2) and was pingable. Check that the IP address is
registered correctly with the DNS server.
......................... EX2 failed test Connectivity
Tried deleting the _msdc entries in dns console, restarted netlogon and dns services. Everything else passes.