There are other ways to configure your Linksys WiFi extender if you can't access "http://extender.linksys.com" or prefer a different method. More ways are available. Consider these approaches:

Instead of the URL, type the extender's IP address into your browser. This is the IP Address Method. Check the extension's user manual or sticker for the IP address. If you can't reach the default URL, try this. Some Linksys range extenders support WPS. You may connect the extension to your router by hitting the WPS buttons on both devices. This lets you configure the extension quickly without opening a setup page. Linksys offers desktop and mobile extender configuration apps. Download the app before starting the guided setup, which some users may find easier.