Hi, I have the problem Client VPN (Windows XP Pro) with my new router WRT54GX. When I connect VPN, I have the error 721. This connection is working well with my old WRT54G. My setup is correct, Security tab-->PPTP passthrough enabled, Port forwarding 1723, 47,43,50-51 and 500. I tried to flash the new firmware 1.01.05 and hard reset. I do everything but nothing still 721. Could you help me ?