I have 4 Yale YRD256 locks. 3 are Zwave modules and one is Zigbee. The zigbee one will not connect. I have tried the following over the past year and no luck.
That probably isn't doing what you expect it to... the Z-Radios are always powered on. Always. So to reset them you must power cycle the Hub. Settings: Shutdown, when the LED is red, pull the power and wait 10 seconds. Power it back up and try again.
Not saying that will fix the pairing process, just that it will do more than disable/enable does