>>vorpal+(OP)
I have no experience from Hue lights, but at least Ikea bulbs need to go to pairing mode if they were previously paired to something. Without it they cannot pair to new hub. With Ikea lights you get them into pairing mode by flicking the lights on and off 10 times.
>>vorpal+(OP)
I've had to force my Hue bulb into zigbee pairing mode by holding a Hue dimmer switch very close, then pressing and holding the on and off buttons until the light starts to flash and stops flashing, then releasing the on/off buttons.