We can access the file server in our office through its ip address,
but we cannot access it through UNC like \\servername.
"Logon Failure: The target account name is incorrect"
I have tried..
Restarted the server
ran "ipconfig /registerdns"
corrected registry "hkey_local_machine\system\currentcontrolset\services\tcpip\parameters" by deleting and re-adding Domain, HostName and NV Domain, Nv HostName.
No DNS event errors.