Now that the device setup is foreseen and nothing is available to either router or extender, just plug in the router that is connected to the power adapter, switch it on from the wall socket, and...Internet required an ethernet connection. So once you plug in the ethernet, just search for the WPS button. This method is very easy; you just need to hard press the router and then the Wavlink extender. The ring light shines solid blue, indicating the extender is for sure in very good connection now with the router. If the device is up with the red light or any type of blinking with the red light, then the process proves a fail. For the Wavlink router Setup, blue light is a must.