If I may, this appears to be a well known issue. @kkossev has confirmed as much. There is a trick to getting devices to pair, if the above suggestions don't work. Something about doing a zigbee rebuild x 2 , and setting the channel power to 4, pairing right next to the hub, clicking avoid 3.0 repeaters and hopping on 1 leg. I can't locate the instructions right now, but the thread below says to log a support issue
