Does the server show error ANR0480W at all?

We have an open APAR (#IC29491) where when a client connection is lost to
the TSM server during a server action (as opposed to when the client is
sending data), the schedule becomes frozen and all subsequent schedules will
fail.  The Scheduler service must be restarted.  This only happens using
shcedmode prompted.

Tim Rushforth
City of Winnipeg