I am not sure if this is a hardware issue as I have read from several threads here.
My Hubitat is running on the latest update (18.104.22.168) and my Z-Wave is running fine.
I tried adding 2 Philips Hue Motion Sensors and the Add Device discovery ends without detecting the devices.
I see that my Zigbee Network is offline. I have tried disabling, shutdown, unplug power, wait for 5 minutes then turn on (using instructions at ZigBee network is not online - #3 by thebearmay) but it still does not work.
I have also tried to reset my Philips motion sensors and they are flashing orange so I am sure they are in pairing mode.
The Zigbee logs are empy and I don't see any errors in the hub past logs as well. Another anomaly is that my Zigbee channel cannot be changed at all. Changing it does not make any difference and it is stuck at channel 20