The Wavlink router not working because of some failures that may or may not be recognizable. However, do not panic; all you have to do is apply the appropriate troubleshooting solutions. First of all, ensure the router is connected to the current extender. Ensure they are rightly positioned, far from thick walls, and with very less distance in between. Place the router far away from any electrically conductive or metallic object that might disrupt signal reception. After some time or after a restart, unplug the router, and plug it in again. At times, wireless connections lose track of signal, so try using the wire instead. However, check whether the firmware is updated for your router and update it if a new version is available. Then, again, reboot the router if it asks for it, remake the connections, and test the performance. Should you still struggle with the issue, reset and go again to setting it up.