Whenever someone connects to the SBS 2003 R2 Standard server, after a period of time (eg 45 mins) they lose connection. The users have also been complaining of occasionally being unable to save opened doc and xls files back to the server (file locked) which I suspect is a symptom of the main cause.
I can connect to the server via Remote Desktop for long periods of time without incident.
There's nothing in the event log to suggest anything is up other than a brief run of RASMAN 20209 errors at a totally differnet point in the day.
Is there a connection timeout setting I'm missing or could something else be causing the problem?