A:Answer Hello Sergeant Major!
Short answer, No, you cannot REPLACE your modem/router combo because this device does not include a modem. You could utilize this device as a better router/wireless access point than your current device, but you would still have to keep it. That being said, you are probably looking for another router/modem combo. Determine the requirements of your service provider, or ask them for recommendations, and then look for a modem based on that. Most modems you find here on Best Buy are modem/router combos.
