Incremental Backup fails with Final error: 0xe0001681 - Access is denied (Exchange restore)

[ClaytonDaniels]

First off:
Backup Exec 2012 v14.0 rev. 1798 (64bit)
Exchange 2010

The Errors:
Final error: 0xe0001681 - Access is denied (Exchange restore)
Final error category: Security Errors

Backup- \\NKADDEX01\Microsoft Information Store\Mailbox Database 0445842452

Access denied to file Logs ( E000001BAB6.log - E000001BC9D.log ).

Error writing file data.

Access denied to file Logs ( E000001BAB6.log - E000001BC9D.log ).

Error writing file data.

Access denied to file Logs ( E000001BAB6.log - E000001BC9D.log ).

Error writing file data.

the above continues for a good long while

The Full backup runs on Friday nights, the incrementals run the rest of the days. The incrementals completed successfully every day since, until this morning. I checked credentials and every Test succedded. There is no restore job within the backup, so the Access is denied (Exchange restore) is a bit confusing.

What else can I check to get this back up and running?

[Sush---]

Hello Clay,

   Can you confirm that the account used for Exchange backups has proper rights on the C:\TEMP folder? Also ensure that the IMG folder where backups are taken is excluded from anti-virus scanning.

Thanks.

-Sush...

[ClaytonDaniels]

We use our domain admin account for the account that manages Backup Exec, this account has all access to the server. The IMG folders (I am assuming you mean the IMG**** folders under the BEData folder) are not apart of the Anti-Virus scanning software.