Recovery point set backups intermittently not running according to schedule.
Using Symantec System Recovery (SSR), recovery point set backups are intermittently not running according to the defined schedule.
No errors are seen in the SSR user interface (UI) or in the Windows event logs.
Windows 2008 R2 Enterprise
Please refer to the following article for the solution:
If the above does not help, Microsoft support should be contacted for further assistance.