Hey there, @bertmet! You may want to shine a bright light into the camera while having the live view pulled up, as this may allow the night vision to adjust. In addition, have you tried moving the camera to a dark area like a closet and test another event to see if the night vision comes on? Sometimes even covering the cam with a piece of fabric can work as a test. If the night vision still does not come on, you should reach out to our support at 1-800-656-1918!