urgent - 4.2.1 client scheduler frequently stops during backup

Hello all

I have the 4.2.1.32 client running on a W2K server over a T1 WAN link.  The
backup of this client is generally less than 500M per day, but the TSM
scheduler service on that client regularly terminates unexpectedly with the
following error in the W2K event log:

----------------------------------------------------------------------------
Event Type:    Error
Event Type:    Error
Event Source:  Service Control Manager
Event Category:     None
Event ID: 7031
Date:          7/16/2002
Time:          8:04:38 PM
User:          N/A
Computer: FILESERVER
Description:
The TSM Scheduler service terminated unexpectedly.  It has done this 31
time(s).  The following corrective action will be taken in 0 milliseconds:
No action.
----------------------------------------------------------------------------
This client uses the CAD to manage the scheduler and web client access.
This client uses the CAD to manage the scheduler and web client access.
When the scheduler terminates, the CAD restarts it 10 minutes later, until
the startup window for the backup expires.  There are no errors in the
dsmsched.log or dsmerror.log.  The dsmwebcl.log file shows the restart
after 10 minutes.  The server activity log merely shows ANR0480W - the
connection was severed.

Because this is a WAN client, I've looked at COMMTimeout (600 seconds),
IDLETimeout (30 minutes), client compression (ON), TCPBuffSize (128),
TCPWindowSize (default=32), TCPNoDelay (NO).

I can't tell what is causing the scheduler service to terminate.  Any
ideas?  Would running the scheduler service full time, rather than using
the CAD to manage it, remedy this problem?

Thanks... Ken