I noticed yesterday that all my Z-Wave devices (mostly Zooz lights and other Zooz products) became unresponsive. I checked the Z-wave details page and noticed that all but one of them are missing routing info:
I tried the following troubleshooting steps but all attempts were unsuccessful:
Restoring 3 different backups which included the Z-Wave radio.
Z-Wave replace from Z-Wave Details page. After pulling the airgap and attempting to do it on one of my Zooz Zen27s I got some odd info on the device page:
Z-Wave Repair shows failed nodes and none of the unresponsive devices acquired routing info:
For context, I have mesh which includes Upstairs Hub, Downstairs Hub, and a separate hub to aggregate and automate the first two hubs. Only my downstairs hub is affected.
At this point, what are my options so that I can salvage my automations and avoid a lot of work? Is there any way to bring my devices back to life?
Try a full power cycle. That is: Settings:Shutdown. When the LED goes Red, unplug it from the wall (not the hub) and wait 30 seconds. Only when the power is fully gone and drained out, do the Z-Radios reset. Power it back up and everything should come back.
Wow to my surprise that worked! This has never happened to me and I thought it was a lost cause.
Any idea what could have caused this issue? I know one of my devices has S0 security but I didn't think that one device could cause havoc like that on my network. Other than that I don't know of any issues that could have caused it.
@alexcapone, congrats on the fix. I'm curious, are you able to do a z-wave repair now that your z-wave mesh appears to be alive again? I'm asking because I experienced the same problem as you yesterday, applied the same fix, but still get all failed nodes upon attempting a repair, even now.
Emergency repair procedures #1, power cycle, works most of the time. I had the same issue when removing a Z-Wave lock and everything just stopped at the end of the exclude. Thought those twitchy GE/Jasco switches excluded themselves while the hub was in exclusion mode. Panic set in for about 5 minutes and cycled the power.
I was attempting to get my August Lock Pro to work relibly for 2+ years.
No matter what I tried this toy was not working reliably.
Finally I gave up and was thinking to replace it with something else.
Recently I added Home Assistant to my setup and discovered the HA
has an integration for the August Lock. This is unfortunately cloud-based
integration but better than nothing. It works very well.
I agree that August Z-Wave was historically bad but after the 2.3.1 and Z-Wave Firmware 7.17.1 updates the inclusion process was much easier and I never had performance issues until this one event that took down my entire Z-Wave network.
I also have the cloud integration in Home Assistant but compared to Z-Wave the device response times are not nearly as fast when using the device in automations for both triggers and actions. I would notice difference for things like scanning an NFC tag to unlock or turning on lights when manually unlocking the door.
Interesting.
After I updated my hub to 2.3.1.142 and of course, ZWave to 7.17.1 my August Lock PRO
started to drain batteries in about 3 weeks. But performance absolutely did not improve!
This was a final drop for removing August Lock from the ZWave network.
Now batteries is very happy and I still have HA cloud-based integration.
Yes, it is slower than ZWave but unlike ZWave it actually works near 100%.
For the automation I have a separate Door Sensor.
HA integration is used only for the automatic unlocking because in my case
(apartment complex environment) native Auto Unlock also is not working reliably.
Plus I am not always have my cell phone with me.
If your hub was affected, you wouldn't be able to restore z-wave devices. My understanding is that power cycle brought the z-wave network back, with all devices intact, so that's a different issue.
