This group has just stopped for no apparant reason. It does not say it is waiting for media, it just is doing nothing after completing 60% of the backups. Its status is "running."  The next up client says some sessions are active (they are not doing anything) and others are queued. This job is only for SQL backups and worked fine yesterday and generally in the past. No new backups were added to any of the clients. There are plenty of tapes, even new tapes, that can be used. It does not say it is waiting for media. Both tape drives are empty. There are tapes available for the bootstrap index. All the prior clients completed successfully and there is only one client left in this group. The SQL server has no log messages pertaining to this job, except to note that yesterday's backups worked fine. There is nothing in the server event log other than successful messages from other jobs. In the past I could restart the job and it would work fine. Is there any way to make these more reliable? This kind of hang seems to happen more often with SQL groups. The client SQL version is 5.2.1.299.