I have installed a VPN with a rvs4000 and a wrv200 for a customer. The VPN tunnel doesn't work. Internet works fine. I configured dyndns on both routers. This is working fine as well. Back home I tried to login to the routers. I can get on the wrv200. I can't login on the rvs4000. I tried it when I was on site and over there it worked. It worked also when I logged in through internet. Both routers have the latest standard Linksys firmware. I tried to configure the routers before going to the customer. I faced the same problems with the rvs4000. Most of the time I couldn't log in through internet on the router. Sometimes after cold booting the router it worked. Any suggestions ?