I set up port forwarding. Glitch in Cox system wouldn't allow me to set it up again after I deleted it. Finally I added port forwarding to another device, and once I did that I could add port forwarding to the DVR. That didn't work. Activated DMZ for the DVR port. Not something I wanted to do, but can't get it to work. Now I can connect to it from outside of his house, but not when on local network. Ridiculous! I agree with Superbigwaff. I suggested to him he send it back and buy a real modem and router. This device is garbage. Shame on Cox for promoting a device that won't do what it needs to do.