Have run the NETDOM utlity on our local DC (see attached image) and found that the DC is not reporting its status correctly. When WinXP users are connecting to the DC to request group policy updates they also run into this error message that gets reported in the event logs on client PCs: The specified domain does not exist or could not be contacted.
I have read numerous articles that this could be a DNS issue but there are no errors appearing on the DC to suggest this. I recently installed the latest NIC drivers on the DC's NIC to be sure it wasn't a driver issue yet the problem remains and has done for some time.
Any help appreciated.