I have three Iris contacts and two Cree bulbs at the moment. The Iris contacts periodically just stop reporting anything, and need a reset/re-pair AND THEN restart Hass to get working again. The Cree bulbs will suddenly stop reporting correctly, although they respond to commands. This leads to MAYBE being able to turn them on/off but not back off/on again. Restarting Hass does nothing, and I can get them to reset, but they won’t pair back in best I can tell – they’re now totally unresponsive. I got them working again a few times, but I’ve never been able to reproduce it.
There’s also no way to actually remove a device? That’s a pretty basic thing… It feels like this was rushed out the door under pressure of overwhelming demand.
I have an Iris hub laying around, managed to get one of the bulbs paired to that and I can control it that way, I’m gonna check on it periodically and see if it starts misbehaving. Just to rule out the bulbs being crap.
I have two cree zha bulbs that did work great. After adding the four sengled zha bulbs, I have seen the issue where the bulb state is out of sync and or the bulb does not respond to commands. Sometimes when the bulb does not respond to on/off moving the brightness slider gets the bulb in sync. I think part of my issued is zha reception.
If I leave home assistant alone by not restarting and not calling the zha permit service to join the sengled bulbs, the two cree bulbs are pretty stable.
You can always stop home assistant, delete the zigbee.db, and start over. Deleting the zigbee.db seems to remove all the devices. I am not sure if the usb stick needs to be powercycled.
There are some threads around about manually deleting devices from the zigbee.db
I’m also having issues with one of my Cree bulbs. I have one in the living room and another in the bedroom. They were working flawlessly up until sometime last month. Bedroom bulb loses sync constantly. I’ve repaired it a few times, and nuked zigbee.db and started fresh, but it still happens all the time now.
I think my issue is range. The ha computer is in an upstairs closet so the rtl-sdr antenna can be outside and also that is where the UPS is. I have a powered USB hub with the zigbee dongle inserted. Moving that dongle around (limited by the length of cable from computer to hub) seems to have stabilized things and all bulbs have been stable except for one outdoor Sengled which is constantly disconnected.
Zigbee is a mesh protocol, but bulbs are usually not repeaters. On impulse I purchased a Lows Iris smart plug which should function as a repeater. I have not spent the time to get the mesh meshed or map the zigbee network. This has helped:. https://community.smartthings.com/t/whats-a-cheap-zigbee-repeater/15990