Well team, looks like the Zigbee radio in my v. 2 hub just bit the dust. After multiple hub resets, device re-add attempts. I'm simply not seeing ANY response on the Zigbee side of my setup. While cloud connected (my thermostat and smokes) and ZWave (most of the house) continues to work, all my Zigbee devices remain offline. I've tried to take the hub offline for 20 minutes to heal the Zigbee network with no joy. I've even tried to reset the channel on my Wifi hubs to ensure no crosstalk. Even the Sengled lamp I moved next to the hub to test with isn't sending messages, status or receiving commands. It's dead, Jim. Does anyone have an additional thing to try before I go to Amazon and order a new hub?