I have a Windows 2003 Secondary DC located in office 2 it also runs Exchange 2003. Since yesterday it cannot provide shares for users and cannot replicate with DC1 at office 1. I can communicate with server via ip address (192.168.2.11) and when I ping DC1 using fully qual name (dc1.domain.com) it shows correct address, which reflects DNS Server entry, but if I PING DC1 with just host name (DC1) it shows 192.168.2.119 which is incorrect. I have checked host files and they do not show that address.
I get several errors in the event log
NTDS KCC 1865
NTDS KCC 1311
multiple KERBEROS 4 events
Userenv 1006 (Windows cannot bind to domain)
This problem is also causing a problem for Exchange System Attendant Service to start, causing Exchange not to function