Sophos blocking Veeam Agent on Windows 11

 Qoosh Well, I thought I would share this with the community as it's an odd one but these are the observations I had during this issue. I will start at the beginning. After a Veeam upgrade from 12.0 to 12.2 all communication with the remote agent in question stopped. I added the affected machine to a new Sophos Policy such that the Windows Firewall would be set to Allow All. This allowed Veeam to communicate and backup with the agent. When I went to investigate the solution of adding a process exclusion, the first thing I did was set the policy I created for that machine to 'Bypassed'. I then waited a day and let the overnight backup run again (I wanted to ensure the problem still existed). To my surprise, it worked. So I manually checked communication with the agent and I can still connect. So, with no other changes it has apparently repaired whatever was wrong when communication was first re-established. Perhaps an agent update was waiting that could not be applied while the firewall was enabled. I have since removed the machine from the special policy I created and deleted that policy.

Thanks for following up to share your findings Tony. I'm certain this will be a great help to other customers who may run into similar issues.

Thanks for following up to share your findings Tony. I'm certain this will be a great help to other customers who may run into similar issues.