Hi,
My Pi4 with hassio hard-rebooted due to a power outage and all my z-waves devices have been lost in the process.
In fact, they are still attached to the controller but they appear as blank in OZWADMIN (see screen capture) with lot of unsolicited messages.
If I put the controller on my laptop and use a Silicon Labs Z-Wave Controller software, then everything works fine.
It is rebuilding the ozw_XXXX.xml file containing your device database. In the screenshot you can see the QueryStage, it can take quite some time depending on your network (up to 45 minutes) before it’s all started. Battery powered devices can take some hours up to a day even, unless you manually wake them.
I figured out that nodes 2 and 3 were flooding the controller with those commands:
[20201217 9:43:01.427 CET] [ozw.library] [debug]: Detail - Node: 2 Received: 0x01, 0x15, 0x00, 0x04, 0x00, 0x02, 0x0f, 0x32, 0x02, 0x21, 0x64, 0x00, 0x00, 0x0a, 0xee, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x52
[20201217 9:43:01.427 CET] [ozw.logging] [debug]: popping Log Mesages
[20201217 9:43:01.434 CET] [ozw.library] [info]: Info - Node: 2 ApplicationCommandHandler - Unhandled Command Class 0x32
I shut down those devices and everything went back to normal. Now wondering if I should remove/add those nodes to clear the issue or is there something else to do?
It wasn’t the case before the reboot.
Excluding/Including those 2 faulty devices made the trick.
Could it be that they corrupted due to the power outage?
Thanks for the help.
Unsure what kind of devices they are to really answer that. But I guess your OZW cache file got pretty corrupted somehow. Good you got it all back online though 
It was “NODON Z-Wave Plus Micro Smart Plug”. Yep, happy I didn’t have to reset the controller
