By: graham ross

Hi Mike,
We’ve had the same issue and have found a different way to resolve the issue which doesn’t require a server reboot.
Start Remote Desktop Services Manager
Identify the user ID in the Users tab
In the Processes tab sort by ID
Go down to the user ID and end the winlogon.exe process
the user session will be logged off
A server reboot will probably be beneficial at the end of the day
Regards
Graham