The router will lose the WiFi connection when the Wavlink router login of the router is bad. Also, some other reasons can be behind the Wavlink router not working. Follow the below-given instructions for the setup. To get off the issue of the router not working just see if the router is a strong connection with the ethernet. As if the port or the wire of any of them is not in a good connection, then there is no chance that your router will work. But make sure the lights are visible on the devices as this is the way to judge the connection. Place the extender at a better place now and check the working.