Yes. Orbi works with your existing gateway or modem.

• If your gateway or modem has router functionality: When you set up your Orbi network, choose AP mode and turn off your existing gateway or modem's WiFi to improve performance
• If your gateway or modem does not have router functionality: When you set up your Orbi network, select router mode and turn off your existing gateway or modem's WiFi to improve your performance.

Note: You can use your existing gateway or modem's WiFi network name for your Orbi network.