To install your Wavlink WiFi extender, first plug it into a power outlet near your router. Connect to the extender's WiFi network on your device. Open a web browser and enter "wifi wavlink com (https://wavlinkext.net)" in the address bar. Follow the setup wizard to configure the extender, selecting your network and entering the password. Once connected, relocate the extender to a desired location for optimal coverage. Enjoy extended WiFi range and improved signal strength throughout your home or office.