After completing your Linksys re7000 setup, you can manage its network either from the web portal or the WiFi app. Both platforms will provide you access to the same settings and options of your Linksys device. So, choose any portal from these and start the managing process accordingly. Foremost of all, check the frequency bands if your extender supports dual-band and activate them for better internet speed. Afterward, click on the bandwidth channel option and choose the less crowded from there. Then, select the security encryption and enable the WPA3 for security enhancement. Some other features will also be available there so choose them as you want.