I have been looking for 2 days trying to figure out this problem.
it started with my service provider changing our static IP for no reason , so I had to modify the dns ( on my DC windows 2003) to point to the new forwarders, so of course an easy way was to point the preferred DNS server on my network card to the router. which worked fine, then I recently switch back the DNS on the network card back to its own ip and I updated the forwarder again. Anyway, here is the problem: I logged off from a workstation and I couldn't log back in even with administrator password. I could only log into the local computer. so I changed the domain to a workgroup. delete the computer from active directory and rejoin the domain, then I was able to log back in but for some reason when I type \\obt ( the name of my server domain ) it give me the error below , but if I type the IP of my server. it works fine. I went to another workstation and same things , so I had to rejon the domain for all workstation and now then can only access the server from the IP . how can I fix this annoying problem.
Here is the message:
"\\obt is not accessible. you might not have permission to use this network resource. contact the administrator of this server to find out if you have access permissions.
Logon Failure: the target account name is incorrect"