Losing Connection   

Have been having a few issues of late, losing the connection to the server.
After a brief moment, it comes on and asks password again.
Nothing showing in the logs of note.
Any ideas?
Exch 2000 on a Compaq ProLiant M330, Windows 2000
Thanks

date: Tue, 23 May 2006 11:49:51 -0400   author:   John ICS