Our Primary Domain Controller is a Windows 2003 server which also hosts our DNS. Everything was working fine until a week or so ago. We’ve been doing a few things but nothing that should have affected this server specifically.
The server lost Internet (local area fine) access through the primary gateway (Cisco PIX). nslookup shows the server believes everything is fine, but cannot lookup domain names or ping outside the gateway. CAN ping the gateway fine.
When I add another DNS server as secondary, it will get the domain IP lookup from that system (in the network) but cannot ping it.
When I change the gateway to our backup T1, Internet access works. But of course I don’t want to keep it there (VPN and outside resources aren’t mapped through the T1).
No changes have been made to this or the PIX gateway, I tried resetting Winsock and restacking TCP/IP for corruption, to no avail. Any ideas?
Thanks!
Brandon
