A:Answer This is a router, not a modem. It will work with your existing ISP, but if your modem also includes a WiFi router, I would suggest turning the WiFi off on your modem and using this, or otherwise make sure this is using a different SSID than the WiFi router in your modem. Alternately, you can use the WiFi router in your modem for all your smarthome devices, and put all the other devices on this router. That way, the bad security of your smarthome devices will be less of a threat to your laptops, smartphones, etc.