TKB Home Devices Failing.

[micky1500]

I have a few Light switches.
All Of them failed 0n 28/12/2024
Power Cycled them and Z-way Raspberry.
They work as stand alone Light Switches, But no wireless anymore.
TKB Home, TKBHOME, TZ65D, TZ66D
Re-Interview pretty much fails.

Just wondering if anyone else has this issue !

Merry Christmas (Not to TKB Home)

[micky1500]

Ok. I think it's fixable.
Got 1 to work already. Gonna take 2 - 3 hours to get them all back with the associations and Rules and Scenes.
Home automation is supposed to make things easier !

Looks Like I need to Manually Exclude every device, then re-add them as new.
Device excluded from foreign network (06:23 PM) - I pressed button on device, it found it for this message (didn't work)
Then Remove Failed Node #107 - It disappeared from my network
Start Inclusion for New Device. it found a new device #143

Seems to work now.

[seattleneil]

Next time you have a device that's become unreliable, there's a different approach that preserves a device's node ID that involves doing a manual factory reset when Z-Way is stopped, starting Z-Way, calling for a NIF and then choosing to replace the failed node. By preserving the device's node ID, rules and scenes used in Z-Way for that node ID will also be preserved.

Here's a more detailed description of the approach:

1. Stop Z-Way. This is necessary because many devices will send out a reset message to node ID=0 when factory reset. By stopping Z-Way before you do the factory reset on the device, the reset message will not get received by Z-Way. By preventing Z-Way from receiving the reset message, Z-Way will see the device as "failed" rather than being reset.

2. Perform a manual factory reset on the device. For your light switches, the procedure is described here: https://manual.zwave.eu/backend/make.ph ... 8-15070009

3. After the device has been factory reset, start Z-Way.

4. At this point, Z-Way expects the light switch is operational. If you use the expert UI and select the Interview tab, and press the "Call for NIF" button, Z-Way will quickly determine the device has failed (because it's been factory reset and no longer knows about Z-Way's network ID). Click on the Jobs queue to monitor the device failure process.

5. Once Z-Way declares the node as failed, go to the Network tab, Control menu option. You should see the node ID for the factory reset switch in the pull-down menu for "Replace Failed Node". If you choose the switch's node ID, Z-Way will include your factory reset switch with the same node ID.

This approach is not special or unique to Z-Way - it's how the Z-Wave protocol was designed.

[micky1500]

Thanks Neil for that.
1 device has been resolved soo far, by the bad way.
Tomorrow i will try to fix the other 5 of them in a better manner.
Will let you know how i get on.

Thanks

[seattleneil]

In my opinion, having multiple switches fail simultaneously warrants additional investigation. There's a good chance there's a common cause involving Z-Wave mesh routing. Perhaps a node on your network that's used for routing has gone awry and is discarding messages. Perhaps the controller's routing table has gotten corrupted. Practically speaking, both the exclusion/inclusion procedure and the reset/replace procedure result in routing for the new device to be updated.

If you feel like doing additional investigation, I'm happy to assist. A good starting point to check the overall health of your Z-Wave network is the Expert UI->Analytics->Packets menu. Are there Explorer messages? Is delivery less than 100%? Do you see a lot of rerouted messages? The next place I like to look for Z-Wave routing issues is the Expert UI-Network->Timing Info menu. Ideally, you do not have timing that's black or red for any device that's line-powered (battery-powered device timing could be black but should never be red). Note that these diagnostic tools don't fix routing issues, they simply reveal if there are routing issues. Assuming you have serious routing issues, one approach to fix Z-Wave routing is to perform a network reorganization (Expert UI->Network->Reorganization). Be patient, the network reorganization process takes several minutes. Note that Z-Way has other tools for fine-tuning routing information. For now, it seems reasonable to take the investigation to this point.

[micky1500]

Didn't like the idea of doing factory reset !
But "Replace Failed Node" Did the job fairly well.
Device names in Expert UI had to be Changed and some associations were missing.
Scenes and Rules still seem to work.

Seems strange that the switches were already excluded, as if they had done their own factory reset.

I have looked at the Analytics information and there is nothing that stands out as being a problem.
It's only the 5 TKB Home Light switches that failed, 43 other devices did not have a problem.

Thanks

[lanbrown]

Seems strange that the switches were already excluded, as if they had done their own factory reset.

One possible reason, did you suffer a power outage and when it returned there might have been a few blips. I ran into that before, some of the devices were reset to factory defaults. In my case it was three quick blips and the devices reset to factory defaults.