Hi,
I found a solution.
My problem was I could log into several local windows 8.1 workstations as user A fine, but when i tried to log in to identical workstations over my wan, i would get errors, this being the most common: "Desktop is unavailable. If the location is on this PC, make sure the device or drive is connected..."
The GPO's all said they applied and the event logs said "folder redirection successful" for desktop etc.
The solution is a registry edit found here, the problem is with offline file cache:
Link Removed
The instructions for re-initializing the offline file cache on Windows 8 are pretty much the same as they were for Vista /...