On one (or more) of our Windows Server 2003 R2 servers the "Server" and "Workstation" services keep stopping. There's nothing in the event viewer that would indicate why (no errors). I recall seeing it once on one server but after I started the services it hasn't had any problems since. However, on one of the other servers they stop all the time.
They are in a remote data center (with a 2008 DC on-site) that is a replication site (the primary DCs are over here). The server has quad NIC's with 2 disabled, one plugged into the switch (static IP, Windows Networking enabled) and one plugged into another server (static IP, windows networking enabled, no DNS, etc.).
What sort of troubleshooting can I do to diagnose this? Any other ideas why these services would keep stopping?
Edit: All the servers are completely patched (Autoupdate is turned ON) and two separate on-demand virus scanners reported no issues. They are servers and firewalled off from the general internet so generally not much is run on them.