I upgraded from C7 to C8pro on about 36 hours ago. I upgraded the firmware version to latest before restoring the C7 config from the cloud. All of my Zwave devices seem to have reconnected with no problems, so at least that worked. I have about 15 or so Zigbee devices, and NONE of them have reconnected, even the ones that are less than 3 months old. Definitely not the migration experience I was expecting.
Here's the bigger problem. It seems I can't even join a Zigbee device after factory resetting it. I changed the channel to 11, power to 16. I then put the hub in Zigbee pairing mode and did a factory reset of a Centralite plug about 10 feet from the hub. The pairing timer runs out but the plug is never found. The Zigbee radio is enabled, and I tried reboot and rebuild, which didn't seem to make a difference.
Is the C7 shut down and power pulled? If it's on or off/plugged in it can mess w/your new hub's Zigbee network.
Some standard troubleshooting you can try...
Set your Zigbee radio to channel 25 and power to 8 (default). Lets start w/that setting.
Shut down your hub, pull power.
-- While the hub is shut down/power pulled, unscrew the Zigbee antenna (farthest away from the USB port on the hub) and then re-attach it securely. Sometimes antennas can become loose or the connection benefits from re-attaching.
-- After re-attaching the antenna plug in again. Shutting down and pulling power restarts the radios, a simple reboot won't do that.
If above dont' help at all...shut down and pull power from your hub for 20m, then plug in again. This puts your zigbee devices in "Panic Mode" and they will rebuild their neighbor tables. May help them reconnect.
I'm not sure exactly what this means, but I did a channel scan. All 15 channels are showing 0 for RSSI and LQI, and Pan ID and Extended Pan ID are all blank. My interpretation is the Zigbee radio isn't receiving anything. It should be, I have numerous wireless devices including Zigbee devices. Does that mean the Zigbee radio isn't working?
Not necessarily, it may just mean that you have a problem with your antenna currently connected to your ZB radio, it's loose, has a bad connection. Or could be non-functional.
Each antenna can do Zigbee or Z-Wave, That's why I suggest you swap them. That can help rule out a determine if you have an antenna issue or internal radio issue, potentially.
I'm seeing activity on the channel scan now. I swapped both antennas and saw activity on the scan, then swapped them back and saw activity on the scan again. So apparently loose connection? We'll see if the rest of the devices start reporting again. It's pretty late here so I'll give them overnight to see if they report by morning. I'll also try joining the one I already factory reset before I retire for the evening.
I was able to join the hub with the Zigbee device I wiped. The hub recognized it as a device that was already present and reconnected it. Hopefully that means the rest of the Zigbee devices will reconnect overnight.
None of my Zigbee devices have reconnected so it seems I'll be pairing all my Zigbee devices again. So far all my battery powered ones have connected OK, but my latest acquisition, 3 ThirdReality ZigBee Smart Plug Gen2's, along with an older Centralite plug, are still not detected by Hubitat after attempting to pair them again.
I didn't realize I could restore just the Zigbee data without restoring the rest, otherwise maybe it would have been.
EDIT: It seems I couldn't anyway. The cloud backup is not available for restore anymore, even though it was not even two days old.
I've got about half my devices paired again, so probably not anymore. Right now I'm more concerned that some of my devices won't join again after a factory reset. It seems strange that all the battery powered devices will join instantly but most of the Zigbee devices that are powered and repeaters will not.
I believe he meant re-do the full cloud backup restore, and since Zigbee is working on your hub again, everything should come over and work as expected.
Unless you moved your Hub Protect subscription from your old hub to the new hub, the C7 cloud backups should still be there. I think even when you move your subscription to a new hub, the old hubs backups are still there for a couple days (can't remember exact details, unfortunately). Scary warning when you move a Protect subscription from one hub to another:
That is odd...so you've been resetting/re-joining the mains powered Zigbee devices and some of them won't join? Which devices (brand/model) are affected?
I didn't have hub protect, just the C7-C8 backup to the cloud for migration. There must be an automatic delete on it after a day or so.
I have about 4-5 different brands/models, these are the ones that won't pair so far:
2x Centralite 4257050-RZHAC
3x Third Reality Smart Plug Gen2
The Third Reality plugs are only about 2 months old. I had every battery powered device in the house added again on the first try within 10 seconds, but so far none of the smart plugs have worked except 1, a Centralite 4200-C. I tried both the alternate join types, setting them up 2 feet from the Hubitat.
OK, so you were using a Migration backup. That definitely should still be available. There isn't any quick "auto-delete" that I remember. Maybe take another look in the available backups to restore on your C8-Pro.
Did you change your Zigbee radio settings back to my recommendation? (Power 8, channel 25)? What we're trying to do is start w/default power (similar to C7 level) and a Zigbee channel that's away from your 2.4gHz wi-fi channel, which can interfere w/Zigbee.
Interesting, I didn't realize some of the Zigbee bands lived in-between the typical Wifi bands. I'm in IT so I've seen that 2.4ghz band chart many times but I've never seen the Zigbee bands in the same view. I did apply your suggestions of channel 25 and power 8. About 20 minutes after that I unplugged the hub for 2 hours and I just powered it back on, to see if that would help the repeaters recover.
Yeah, it is interesting to see how the two bands sit on top of each other. Better if the Zigbee is up higher, and Wi-Fi down lower. Channel 20 has had some issues on the C8-Pro in the past so general recommendation is 25. Some folks do run fine on 20 or 15 (def a YMMV situation), but enough have reported problems on 20 that going to 25 resolved that 25 is a general recommendation if you're having issues on another channel.
Next time you want to do it, AFAIK you really only need to unplug for about 20m to get your devices into panic mode...
I was working, then went out to lunch, that's why two hours.
I never knew Zigbee would be such a pain to get everything reconnected after a power outage. Two hours after powering up the hub and I still have Zigbee devices that haven't reconnected.
Almost forgot... I was finally able to start pairing up the repeaters after the two hour poweroff. So I'm on the way to getting things working again. I'm down to about 4 Zigbee devices that haven't reported in yet and will likely need paired again.
Normally isn't, I've had power outages, and have migrated twice to two new hubs from two older hubs, and never had any significant issues with Zigbee devices reconnecting after the migration or after power came back on.
So this is kind of a unlucky (for you) YMMV situation...
