The URL http//extender.linksys.com is the official portal for setting up and configuring Linksys WiFi extenders. When your device is connected to the extender’s temporary WiFi, entering this address opens the setup interface. Here you can choose your main WiFi network, enter the password, and adjust settings. This local web-based page does not work unless you are connected directly to the extender. Through this page, you can also check signal strength, update firmware, and change extended network names. Using http://extender.linksys.com ensures a simple and smooth installation process for all Linksys extender models.