have you tried hard reset it by holding the reset button for 10-15s?

check it here. http://www.tp-link.com/en/article/?faqid=482

try 192.168.0.1, it seems V2 changed the default ip address. choose wan only and set dynamic ip , restart the cable modem and check if you can get any wan ip address. sometimes the mac clone is...

jarrodr wrote Does VPN pass-through serve the same purpose as VPNBook? Sorry for the silly question. i think VPNBook is still required, as the modem can only allow the VPN pass-through it. if a...

it seems that this model can only support VPN pass-through per the specification and UG, i think it has no specific VPN settings inside

have you tried update the router firmware? what if connect the modem directly to the pc directly, can you get online?