This article describes how to change the wireless channel on a Wi-Fi extender. The exact steps and controls for changing your extender's channel vary by manufacturer, but in most cases you can follow the steps below.
How to Convert an Old Router into a WiFi Extender/Repeater
Wi-Fi extenders allow you to extend the range of your wireless network without the overhead of a full wireless access point. However, if you're experiencing poor connectivity, you can change the wireless channel your device is operating on to try to resolve the issue.
First, log in to your device via a web interface or a dedicated app. The process should be similar to logging into a router as an administrator.
If your device is a true Wi-Fi extender (and not, say, a router), it likely has something like an Operating Mode setting, which you probably have set to Extender or something similar. Set it to Access Point.
