If you find yourself facing problems while setting up the device, here are a few troubleshooting methods for Wavlink Extender Non-Functional:
Connect your device to the extender's Wi-Fi while connecting the modem or router to the WAN port on the extender. Also, check whether your PC is given IP address from the router. Switch off your modem, router, and range extender, and reboot your computer or other device. If so, you have already tried all other options; revert the settings to factory defaults on your router. For this, hold the button for ten seconds. If not, please contact Wavlink customer support.
These methods above should help you get through a Wavlink Extender Not Working message promptly.