Over seventeen years in IT and LAN Admin and I think I am losing it some days. I have setup many a VPN through a myriad of prior challenges and proprietory equipment...BUT one client I have with W2k3 SBE cannot connect to remotely [WAN side] even if when I expose it as a DMZ. I have even gone back to basics and exploring packets through 'ethereal' to determine the cause. Any ideas?

I've used RDP [vX.X] for years for simplicity and use with Terminal Server console operations. But does anyone know of a service or config setting that is prohibiting connectivity? Perhaps a GPO or something that I've missed?

Desparate!