A:Answer Nest WiFi works with most ISPs including Xfinity/Comcast. Google Nest Wifi router can help distribute the full speed it receives from your modem with its faster processor, and its 4x4 radio can help cover larger areas. Moreover, you have an option to prioritize a device (e.g Xbox, laptop) with the Priority Device feature that gives a device of your choosing the fastest connection on your Wi-Fi network. This means less buffering and better download speeds. You can find more info here: https://support.google.com/wifi/answer/6246483
If your modem is a modem/router combo, we recommend disabling its Wi-Fi functionality to avoid a Double NAT that may cause issues while gaming online.