After the Wavlink extender setup, the use of the network may be commended; unfortunately, there are many technical issues that will cause it to exhibit a weak internet connection and slow speed. Your network-enabled devices may experience an occasional connection or some other reasons from it. Restart the extender now to fix that problem and have the reliable connection restored once again. So unplug that repeater from the power socket it is currently using together with the router. Thus, network communication will be terminated between the mentioned device and yours. After some time has passed, plug the extender back into the outlet to which it will be connected again. Once the extender is done loading up, connect your device to the extended network. This can thus solve the problem and restore the extender's normal functioning.

Viist- https://wifiwavlink.net/wavlink-extender-setup/