To complete the Orbi Router Setup, start by connecting the Orbi router to your modem using the provided Ethernet cable. Plug the router into a power source and wait for the LED to light up. Open a browser and type in orbilogin.com to access the setup page. Follow the on-screen instructions to customize your WiFi name and password. For Netgear Orbi Setup, you can also use the Orbi app for a more intuitive process. Ensure your firmware is up to date for optimal performance. Once the setup is complete, test the connection by connecting your devices to the new network.