Very sporadic behaviour of Zigbee devices

[mj0500]

The problem

Everything had been working fine and was stable until mid-day yesterday. I had not made any changes and noticed that a couple of my Zigbee based lights (philips hue and ikea tradfri) that normally turn on at sunset hadn't turned on.

At this time I was running 2024.7.4. I started troubleshooting by trying to turn on the lights through the app, but would get an error saying message failed to send (error 3074) when trying to turn on these few specific lights.

I have 37 devices connected to ZHA. Most of them are still working just fine, however about 7 bulbs are just refusing to work. I can power cycle the bulbs and sometimes they will show up in HA. I can then send one command (eg. turn off) and it will work, but then they will stop responding after that. Once in a while the bulb will flash on and off repeatedly for 5-8 cycles.

After I encountered this issues, I had a pending update from 2024.7.4 to 2024.8.1, so I went ahead with the update, however this didn't fix the problem. I then rolled back to 2024.7.4 and restored from a backup from when things were working properly, but also did not help.

I turned off my HA server for over an hour to try and get the Zigbee network to reroute, however that made no difference.

I checked RF interference using the ZHA diagnostics. I am on channel 20 and it's showing 25% utilization, which is the lowest amongst all channels.

What I am really struggling with is there is no consistency in behaviour other than which devices aren't working properly. It doesn't seem like an interference issue, as one of the problematic devices is less than 10ft from my server and within line of sight. But some other devices which are far away are working perfectly.

I captured some ZHA debug logs. What happened during this logging session is I powered off and on a device and then tried to toggle it from HA.
home-assistant_zha_2024-08-15T23-32-51.573Z.log

What version of Home Assistant Core has the issue?

2024.8.1

What was the last working version of Home Assistant Core?

2024.7.3

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[home-assistant]

Hey there @dmulcahey, @Adminiuga, @puddly, @TheJulianJES, mind taking a look at this issue as it has been labeled with an integration (zha) you are listed as a code owner for? Thanks!

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[Mark612]

2024.7.4

Same issue.

74 devices, and 5-6 suddenly stopped working. Those devices are about 3 feet from the controller, and the others that work are on other floors of the house hundreds of feet away.

[Mark612]

2024.7.4

Same issue.

74 devices, and 5-6 suddenly stopped working. Those devices are about 3 feet from the controller, and the others that work are on other floors of the house hundreds of feet away.

It has resolved. At least for now. Very strange.

[apollo40]

78 devices, and 4-5 stopped working. Some are working, but very slow. Send Bulb to turn off. takes 3 minutes.

[dmulcahey]

78 devices, and 4-5 stopped working. Some are working, but very slow. Send Bulb to turn off. takes 3 minutes.

Enable debug mode for ZHA, reproduce the issue, disable debug mode and attach the downloaded log.

[apollo40]

Tried to reproduce. The thing is, that beside of the non working devices, other devices are totaly slow. Like Pressing a Light Button result in 3 min later turning that light on. Seems like lights are affected and smart plugs, window sensors for example updates there status quite quick.

home-assistant_zha_2024-08-18T10-25-04.167Z.log

[dmulcahey]

Tried to reproduce. The thing is, that beside of the non working devices, other devices are totaly slow. Like Pressing a Light Button result in 3 min later turning that light on. Seems like lights are affected and smart plugs, window sensors for example updates there status quite quick.

home-assistant_zha_2024-08-18T10-25-04.167Z.log

your mesh is being flooded by Tuya mmWave and metering plugs. Start by removing them and check if the issue stops. WHILE THEY ARE REMOVED if you can still reproduce the issue please enable debug mode again, reproduce the issue, disable debug mode and attach the newly downloaded log.

[dmulcahey]

https://www.tuyaos.com/viewtopic.php?t=3484

here you can see folks basically begging Tuya to fix this.

[apollo40]

Seems to work now after i removed the Tuya mmwave Sensors. Funny, had them running over 1 Year in this config without any problem. It all happend in the last few days after Upgrading to 2024.8.x

Metering Plugs are still all running without any lagging.

[mj0500]

Hi @dmulcahey any chance you had a chance to look through my debug logs in the original post? I don't have any Tuya devices but I am still seeing very odd behavior from a bunch of devices and haven't been able to figure out why. I also tried downgrading to 2024.7.3 with no effect, and also updated to 2024.8.2 also with no effect. Thanks