Communication error between BE and Windows remote agent

I have had this same issue for approximately 8 months. I have to virtual servers that the backup fails with the error: Final error: 0xe00084f9 - A communications failure has occurred between the Backup Exec job engine and the Agent for Windows.
Final error category: Resource Errors

I was advised on one occassion that there was a patch in BE 2014 to resolve this issue. We upgraded to BE 2014 from BE 2012 and the problem seemed to have been resolved for a couple of weeks. It is now back and seems to be worse than before.

Is anyone else experiencing this issue??

Any help would be greatly appreciated.