SBS 2003's Routing and Remote Access behind a Watchguard X700
We recently upgraded from a Watchguard X Edge 15 to a Watchguard X700, Microsofts Routing and Remote Access was working great on the X edge with PPTP(default), and L2TP(1701 Added) open and port forwording to the internal IP of the server. Now it is not working using the same rules on the X 700. I am wondering if anyone out there has recently made SBS 2003 R.A.R.A. work with the X 700, and which services are specifically needed, the X 700 has a built in PPTP service but it does not let you NAT from external IP to Internal IP, you can just add other and put a Host IP which should work, but doesn't. I have also tried added my own custum PPTP service so I can NAT but that does not work. And as you can Imagine after being on the phone with a fool at Watchguards Tech Support for 3 hours, they were of no help at all.
This Client has been with out VPN for 1/2 weeks so this is pretty urgent,