Hi I’ve only had one for 2 days, same problem, but last night I turned off the IR option, made sure there were no, inside lights glow and reflections from other room coming in,with open door, Result a lot lot better, but I do have a street light near.  If not get a solar powered light of two maybe, although possibly  if you can hide the light from the camera by placing it behind something or making a Shield to stop the bright light on camera, as it’s such a contrast to the dark, then you might just get the glow to light.  As I said I turned off my IR, as the 4 red lights reflect so badly of the glass, also go in settings / LED,  and turn off the green light. 

Ps would be nice it was painted Matt black, I might be that, I wonder if anyone else has.

@TBow88