You may need to turn bridge mode on or off on the Rogers Xfinity Gateway if you’re adding or removing a third-party router. Bridge mode turns off the router functionality of the modem (including built-in WiFi), and is often used to allow a second networking device (i.e. a third-party WiFi router) to pull a public IP address when plugged into the modem.
Learn how to enable or disable bridge mode on the Rogers Xfinity Gateway modem when using a third-party router.
Note: If you have home phone service through your Rogers Xfinity Gateway, make sure to power cycle the Gateway by unplugging it for 10 seconds after enabling or disabling bridge mode, then check to ensure you have a dial tone.