What happens if the light is cut off? The Yale Connect Hub works with electric power, so it will not work if the power supply is off. In case you are not at home, the application will show that the equipment is offline. When the power supply is recovered, the Hub will restart automatically. In order to recover the connection to the Wi-Fi network and the Internet connection, the home router must also be automatically restarted The configuration of the Hub and the locks will not be modified.