e00084f9 communications error has occurred - not previously discussed

Hi all - I see there are alot of questions about this error - but I couldn't find one that was similar to mine.

ISSUE:

1. Backupexec server OS - Server 2008 R2 Standard
2. Exchange 2k10 Server OS - Server 2008 R2 Enterprise
3. Exchange 2k10 Server SP1 is being used.

A few days ago we upgraded BE 2010 r2 to 2010 r3

I have now getting the above error almost every night. (e00084f9 communications error has occurred)

I have verifed the Exchange management console versions are the same. (per suggestions of one solution)

One search for the error code sent me to the following page - but the settings suggested here are already our defualt. So that's not it.

http://www.symantec.com/business/support/index?page=content&id=TECH50454&actp=search&viewlocale=en_US&searchid=1351792264528

Now - in full discloseure - I am also getting a "insufficient disk space" when a duplicate job from GRT to Tape runs - but this is AFTER the above error, so I'm assuming it's related (I am using an 8GB tape - and never fill it over half way on a typical incremental backup)

uh.. .Help???