@av8rdude I have found that ST’s zwave implementation just doesn’t cope well if you unplug a repeating device. I have had similar issues where zwave stops working when a device is unplugged. Last time it happened. My son unplugged a device and it broke my setup completely and I didn’t make the connection that it was an off device. I would check that all your repeating devices are plugged in an operational. Make sure one hasn’t failed by manually actuating etc…
I have also learnt the hard way you cannot have any temporary zwave switches for Christmas lights etc… otherwise you need to leave the switches plugged in. I now use zigbee for temporary plugs.
This absolutely should not be there case as the zwave controller for the mesh network should mark the device as failed and the routing should change to circumvent the failed device… But I’m my experience this never happens on ST even when the device is down for three days.
I’ve also had completed zwave failures of my network when over polling Sonos or DNLA devices. The zwave network just grinds to a halt but everything else works. But last month this happened without over polling the network until i removed my sonos and DNLA devices even though i hadn’t changed anthing beforehand.