A:Answer This is only a WiFi router. It does not include a modem. You would need the correct modem for your service and that would connect to this with an ethernet cable. Assuming your current modem/router combo device has ethernet outputs, you could use those to connect to this or any other wifi router. In that case, assuming you have the option, you could shut off the wifi function of the old device and just use a new router to create a new wifi network. You would need to be able to access the settings on the Cox device, probably via the device's ip address and a password...