Backup Exec’s 2012 missed backup (there is a step to cancel the job after 22h though) cause crash of VSS functionality on the server.

After this happens, shadow copies are accessible, but not created!!

As example: a vssadmin list providers command just hang indefinitely, neither vssadmin list shadows works. Disk management console (rescan) hangs as well. btw

Restarting Volume Shadow Copy service Is not possible after that, it just hangs and then timeouts with  1053: The service did not respond to the start or control request in a timely fashion.

Only restart helps. Which is unacceptable, as this is a production server. It doesn't happen on every ocassion, but mostly.

Have any of you encountered this problem? Any advice is highly anticipated.

Thank you

Env:

Windows 2008 R2
Symantec backup Exec 2012 SP3, Hotfix 213186