For Linksys WiFi extender setup and fixing a broken Linksys connection, just connect a wire to both the router and the device. Take hold of an Ethernet cable. Take caution not to shatter it. Therefore, while creating the connection, be sure that the Ethernet is tightly connected. Recall the following: Just make sure that the two devices are nearly in close proximity to one other and that they are simultaneously connected to WiFi. But suppose you don't know that a cable is used to link the devices wirelessly by reducing the amount of space between each device. as a result of the possibility of a WiFi transmission dispute.