To set up a Netgear Nighthawk router, start by unboxing the router and connecting it to your modem using an Ethernet cable. Plug the router into a power source and turn it on. On your computer or mobile device, connect to the router's default WiFi network, then open a web browser and enter routerlogin net. Use the default login credentials found in the router's manual. Follow the on-screen instructions in the Netgear installation wizard to complete the setup. For optimal performance, update the router's firmware if prompted. For more detailed steps on the Netgear Nighthawk router setup, you can visit the official Netgear support page or contact technical experts through live chat for assistance.