To set up a Linksys range extender, begin by plugging the device into a power outlet near your router. Wait for the light indicator to blink orange, then connect to the extender's default Wi-Fi network. Open a web browser and navigate to the extender's setup page, which can be accessed by entering extender linksys com in the address bar. This is the official extender Linksys login page. Follow the on-screen instructions to select your Wi-Fi network and enter the network's password. Finally, place the extender midway between your router and the area with poor Wi-Fi coverage. For optimal performance, ensure the extender is in a location where it receives a strong signal from your router.