Floodlights and two phones not syncing

My floodlights won't go off! I think our two phones wont sync. When I turn off the floodlight button, it auto matically pops 'on' on my husbands phone. When I turn the button off on his phone, then my flooslight button auto turns back on. Back and forth. The floodlight activation button will not stay thwe same on both phones. How to sync the two phones. We have done two hard resets, doesn't fixit. We have turned off the motion as low as it can go but it still comes on and stays on.