Hello, I have an issue where occasionally, sometimes multiple times per day, my C7 hub will stop sending commands to my Z-Wave devices, though all of those device’s states are still being updated on the hub. A restart will not resolve the issue, only a full shutdown will bring it back to life.
Anyone else seen this problem or have any ideas on what might be causing it?
Thank you for any help!
Richard
Can you post a shot of your z-wave details page?
When I have seen something like this, it was because of some or all of the issues below:
A screenshot of your z-wave details will help other community members help determine if some of the items above coud be causing the issues you are seeing and might be able to provide tips on how to resolve those.
Any power reporting devices? If so disable the reporting
You mean removing power from the hub for 30 seconds or so? Or something else?
Thanks Sebastian, those are some good things to investigate. I will get the z-wave details posted.
Thanks Mark, I do have at least one device reporting power, I will disable that and see if that helps. Is there a better way to trigger a rule based on power when power reporting is turned off?
Brad, yes I select shutdown from the hub menu and then unplug the hub for 30 seconds and the restore power. Short of that nothing seems to resolve the issue, like reboot.
Ouch...all of those devices that have an empty last column (Route) are your problem...those will blow up a Z-wave mesh, and are called "Ghosts." They are incomplete/failed pairings of devices to your mesh!
I had a feeling I might be doomed after reading some other posts on ghost nodes.
It also appears that getting rid of those ghost nodes can be a nightmare.
I guess my question at this point is, am I better off starting over from scratch, and if so, what is the most effective way to do so?
I see that I can “reset” the z-wave radio, but does that also delete all z-wave devices currently in the system?
Don't reset yet...that is almost never the easiest way out. 
Any of those devices that are battery operated (like motion devices) can usually be ignored until you have your mains powered devices straightened out.
Ghosts usually indicate a bad pairing...first thing you could try is shut down the hub (shutdown command in settings) and then unplug the hub (at the wall wart, not at the hub) for twenty minutes and plug in again. After it boots up, see if any of your ghosts resolve and show routing.
For ghosts that persist (no routing), you'll need to remove and re-pair them. Three ways to remove devices:
Once power is removed from the device, hit Refresh button on the device entry on the Z-Wave Details page until the Remove button appears. Then hit Remove and the device should remove.Thanks danabw, I will work through this list and see what happens.
Question, you say not to worry about battery devices, but I am curious, all of the shades listed are battery devices, why do some show routing and some do not?
Well, after shutting down and removing power for 20 minutes and then restoring power, I now only have 5 devices showing routing instead of the previous 13 
Battery powered devices, aka sleepy devices, may need some time to report in (unless you want to walk around an manually wake them up). Mains powered devices should report in fairly quickly, but cycling the power to them may prompt a reconnect if they’re stubborn. Under normal situations I worry about the mains powered devices first as they are generally the repeaters, and if not routing correctly will cause the most issue.
Yeah, what he said. 
@vvrangler - just to be clear, you're saying you have more devices w/out routing after the reboot than before, is that correct?
Can you post your Z-Wave Details page screen shots again?
Noticed that you have a lot of battery powered devices compared to mains powered switches/plugs/repeaters. That may be part of your problem, you might need a few more mains powered repeaters to help your mesh out, depending on where your battery powered and mains powered devices are concentrated.
@danabw Yes, that is correct, after the reboot, it was only showing 5 devices with routing. After leaving it be overnight, when I checked again this morning there were a couple more showing, so I decided to click the "Update" button on the Z-Wave Details page and after the page refreshed, it now only shows 2 devices without routing. Hopefully this is a good sign.
Much better looking Z-Wave Details...interesting that you said you hit the "Update" button - AFAIK that really shouldn't do anything unless you change the Z-Wave settings (Region or Status) but we'll take it. Maybe it generically forces a refresh of the page.
Looks like one shade isn't reporting routing, what is the other device. If it's a mains powered device you'll need to deal with it. If it's battery operated then it may be fine.
And of course most important is how your mesh is responding - if devices are reacting promptly/working normally.
Hopefully things will be OK...good progress.
Looks better. I would also add, shut down the hub from the settings menu, unplug at the wall (not the hub) for 10 mins and then power back up. This will clear the z-wave radio and hopefully see those routes back...
Both of those devices are battery devices. I forget to think of them as such because I have almost all of them powered via USB rather than using batteries.
Regarding the Update button, I had definitely refreshed the Z-Wave Details page several times since the reboot, which did not change any of the statuses, only after clicking the Update button.
So it's hard to say if the routings were really there already and just not being displayed or not. When I was originally missing a lot of routings I don't believe I ever thought to click the Update button, so I don't know if it was the same case then.
Either way, THANK YOU to everyone for the help with all of this. I will monitor things over the next couple of days and see if they are responding better and if I have any further Z-Wave crashes.
Download the Hubitat app
