We are seeing this error sometimes too "Group Policy client service failed the logon...."
We make it go away by deleting the users Persona folders.
We are not sure what causes the error - we have some ideas but don't see a correlation yet. Think something is corrupting the Persona related files then problem follows from login to login - looking at Roaming Profile type solutions. Event Viewer pointed back to Group Policy service.
-could be bad network cable/connection on physical computer - except PCoIP should not create that much traffic.
-could be incomplete logoff from previous VM session leaving user disconnected but still logged into stale session- reccomending using logoff and disconnect from ribbon instead of Windows logoff button.
-could be caused by logging on to physical and VM computers at the same time - we use local profiles only on physical computers and do not sychronize Persona between physical and VM.
-could be something with Group Policy service - Win7 used to have a problem where it would load the desktop before the group policies completed and finish the GPO load in the background. There was a GPO setting that prevented the desktop from loading until GPO's completed. Maybe related to this issue.
-maybe something funky in some VM's that will go away with a refresh. We saw more of this with new pools/gold image and less now as time has passed.
We have not connected any dots as of now. For us the fix is easy enough but would like to know the cause.
