I have a client with a Linksys router befsr81, port 1723 forward to static IP with Windows 7 VPN Server setup. VPN Pass-through is enabled.VPN Client is Windows 7. From inside the network everthing connects fine (same 192.168.1 network). When I try to connect via my cell phone over the internet I get "verifing User and password" and it stops. When I look at the Router logs I see my clients IP address going to the server static IP port 1723. i.e. TCP from 18.104.22.168:3137 to 192.168.1.50:1723 where 99 is my IP and 192.168.1.50 it the static IP of the VPN server. The Server PC has Mcfee but I did not need to make any changes when I connected internally.