To perform Nighthawk Router Setup, start by connecting your modem to the router using an Ethernet cable. Power on both devices and wait for the LED lights to stabilize. For Netgear Nighthawk Router Setup, use a web browser and enter routerlogin.net or open the Nighthawk app. Follow the on-screen instructions to configure your network, including setting up WiFi credentials. Update the router firmware for optimal performance. If issues arise, restart your devices and check connections. For a wireless setup, ensure the router is within range and connected to a stable internet source. This completes the Netgear Nighthawk Router Setup process.