Surface / RT and VPN

This is kind of technical but I assumed a lot of people would have had some experience with it, and am just looking for a pointer in the right direction:

My Surface 2 clearly has some VPN capacities built into RT, but I have not been able to get it going at all. I have a personal/small office VPN through my Synology file server. Has anyone been able to maintain a VPN connection on their RT device?