I have 8 Zigbee devices (4 routers, 4 end devices) and 23 Matter/Thread devices connected (IKEA temperature sensors, contact sensors, and a few Kajplats lights).
Everything worked great for almost two months, but during the last few days it has started to have issues over and over again. My Homey Pro 2023 keeps losing connection to devices. I’ve restarted Homey several times — sometimes it helps for a bit, sometimes it doesn’t help at all.
I’ve tried re-planning the mesh networks (which is basically done in blindness, since Homey doesn’t really show much about how devices are connected), but that hasn’t helped either.
How can it be stable for a couple of months and then suddenly become this unstable?
The app (including the desktop version) has been sluggish, especially today. Sometimes I can’t create flows, and sometimes it can’t even find the cards used in existing flows.
There’s a lot of issues right now. Pretty frustrating.
Anyone else experiencing similar problems?
Worth mentioning: I also have a Hue Bridge and IKEA Dirigera, and they are rock solid. Homey isn’t. I initially thought Hue or Dirigera might be causing conflicts with Homey, but then why did everything work fine for two months?
I also changed my 2.4 GHz Wi-Fi to channel 1 just to be safe, since Homey’s Zigbee channel is 24—but that didn’t help.
My Homey Pro is running the latest firmware; version 12.11.0.
Should also mention that my Z-wave devices are rock solid on Homey. Never loses connection. IMO: Too bad that Zigbee and Matter/Thread have taken over the market.
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I’m having Zigbee issues too since a few days, mainly Aqara Presence sensors. No connection, crashes Homey and Homey loses cloud connection. Nothing seems to fix it.
When it starts to fail after months without issues, I can only think of
- interference by other devices or close neighbour devices (you have no control over those transmitting 2.4GHz on ch. 11 for instance).
Or
- firmware issues in case you recently updated.
Using both Matter-over-Thread & zigbee is not the best idea (Thread & zigbee share the same chip), but when it ran fine for months, that couldn’t suddenly be the issue now.
However, v12.11.0 changelog show changes to Matter, which might be related
If possible revert to firmware v12.10.0 by restoring an offline backup
(it’s best to perform an offline backup prior to updating the firmware).
This way you can determine if the issue could lie in the changes made with Matter.
My neighbors don’t have Wi-Fi networks that should cause interference. I’ve checked using a Wi-Fi analyzer.
The Homey software was updated about two and a half days ago. It’s possible the issues started around then, but I think it began a bit earlier.
I’m aware that the chip is shared between Zigbee and Matter/Thread, but it worked perfectly fine for two months. The only thing I’ve done recently is add a Sonoff temperature sensor six days ago, but since it’s an end device located far away from everything else, it shouldn’t be causing any problems.
I also have very few Zigbee devices, so the load on the chip shouldn’t be particularly high.
I find all of this very strange. It’s extremely unstable.
Edit: I’m adding an Eve Smart Plug (Matter/Thread) tomorrow to see if it makes any difference to the Thread network.
And also, my Homey runs on wifi, quite close to one of my mesh wifi-routers. Perhaps it becomes more stable with ethernet cable?
That’s related imho. I’d temporary remove it to see if anything improves.
Because devices exist which spam the network with updates, choking it.
Far or closeby doesn’t matter, if it’s a member it can influence the network performance.
For the moment both zigbee and matter/thread networks are up and running. No devices disconnected since last reboot.
If it starts to disconnect devices again I will remove the Sonoff temperatur sensor to see if it disturbs the network.
Thanks alot for helping me try to solve this issue.
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YW!
By the way, 
AiC as well.
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Having specifically aqara issues also since a few days, while it worked flawless for many years. The app was just spontaneously uninstalled: present in the app list but not actually there. Ikea matter isues i have all the time since installing two weeks ago. Freezing some specific apps problems since about a year (homeyduino, tuya, harmony), going fron homey 2019 to 2023 no difference.
