Hello,
Since when does this problem occur? What are you backing up in this job? Check for errors in the Windows event logs.
Ensure that you have installed the latest service pack for Windows as well as Backup exec and test the results.
If the issue persists, revert with details.
Note : If we do not receive your reply within two business days, this post would be marked ‘assumed answered’ and would be moved to ‘answered questions’ pool.
Regards.