To kickstart the Netgear AX5400 setup process, connect your modem to the internet port. Now, power on your router and wait patiently for the Wi-Fi LED to light up. Next, access the settings of your Netgear router. After that, download the Nighthawk app on your mobile device and then install it. Follow the app instructions to set up your Netgear AX5400. To learn more, feel free to call us any time!