We have a Windows 2012 R2 server running Symantec Endpoint Protection 188.8.131.52.2000. Same behavior I am reporting was also observed with ver 14.0.3876.1100
We have a backup appliance Rubrik on version 5.2 that archives virtual machines fine to the above server fine. It is when we attempt to write a virtual machine tape, using Qstar software we run into a problem. The job keeps restarting.
If we disable Symantec the jobs fails. If we put exceptions in place for the Qstar directories the job fails too.
If we remove Symantec the job completes.
How do we go about troubleshooting this type of scenerio? Rubrik and Qstar believe Symantec is the cause.