backup exec error after enabled File System Archiving

[SymQNA]

symantec backup exec 2010 R2
daily and weekly backup failed on the server that enabled File System Archiving with msg:Final error: 0xe0008488 - Access is denied. Final error category: Security Errors, we confirmed no conflict on the backup time and File archiving time

[pkh]

To solve your problem, you should enable AOFO.

[SymQNA]

AOFO is enabled but still failed

[pkh]

Have you tried restarting that server?

[Donald_Eady]

Seeing that you are still using R2 i would suggest upgrading from r2 to R3 and then running live update to get the remaing hotfixes. You may also want to verify that the BESA still has the appropriate rights needed to perform backups and that the passwords are still current

Please View the document below for the installer to upgrade to 2010 R3 as well as the remaing hotfixes 

http://www.symantec.com/business/support/index?page=content&id=TECH66724

Please view document below for the rights that need to be granted to the BESA

 http://www.symantec.com/docs/TECH23689

[SymQNA]

Still encounter Access deined error even restarted server and enabled AOFO, but have ever succeeded to run occasionally. Please urgently help.