You can visit the login window using the IP address to get to the WiFi channels configuration page. For setup purposes, it is printed on the router's back. Alternatively, you can log in to the extension using the app. Going to extender.linksys.com, finding the instructions there, and following them to finish the process is another easy method. Enter the right login information when navigating the Linksys re700 router's advanced WiFi settings. The next step is to manually choose WiFi settings 1, 6, and 11 to enhance performance. To set the channels, do a speed test. Set the Linksys re7000 setup and WiFi channels that provide the fastest speeds.