Make sure the power cord is connected. If power is connected and the LED is still off, press and release the blue Status LED ON/OFF button shown in the diagram below. It can take up to 30 seconds for the lights to turn on. If the LEDs are still off, try repowering your Vantage Connect (unplug the main power cable, wait one minute, then plug it in again). If the LEDs still do not come on, contact technical support.