Aqara/Xiaomi devices leaving the network

[msebald]

Hello all,

not a new topic/problem, but I also have these issues and I wanted to raise these here as well.

What happened before: I'm coming from two official Xiaomi Gateways and about 40 Aqara/Xiaomi sensors, and the binding I needed for openHAB (before migrating to Home Assistant). Then one of the gateways died and I decided to move on. I also tried deCONZ with the ConBee III stick before choosing Zigbee2MQTT.

Now I'm using 44 Aqara/Xiaomi sensors including four smoke detectors (and nothing else, no devices from other companies) in a Zigbee network with six CC2530+CC2591 DIY routers. The coordinator stick is a Sonoff ZBDongle-E on channel 25 (I have four wifi access points in the house which run on different 2.4GHz channels, Zigbee channel 25 looked okay for me) and everything is linked with Home Assistant now.

The CC2530+CC2591 routers run on a ptvo.info firmware I created myself (I did not find a more or less recent download which I am sure that it works good), but the settings are quite simple:

I wanted to have a LED blinking so I set up P17 for that. Also I read about that the reporting intervals should be set to 60 seconds. The model ID is from the time with deCONZ. I did not read that this is relevant for the sensors or Z2M.

The sensors are evenly distributed across the six routers, so it is between six and eight devices per router. Today I got the hardware for a seventh router which I will bring up. Maybe it is still too much devices.

Anyway, what happens is, that between a few hours and a few days, devices start to drop out. At the moment, six devices dropped out during the last two weeks. In the log von Z2M I only see this:

[2025-03-09 00:16:33] warning: z2m: Device 'Türsensor Wohnzimmer' left the network

The devices are not always the same, but I have devices which do not drop out at all, and others dropped out more than just one time.

Does anybody have ideas for me to try? Maybe a different firmware for the routers? As I wrote I was just unsure if the firmware files I can download are suitable for what I try to do. Or do I have a completely different problem here?

I am always happy to provide more informationen, where needed. Just wasn't sure what else is relevant.

Thanks and regards,
Martin

[msebald]

Nobody? It's hard to believe that I am the only person with this problem. The Internet is full of it. But unfortunately nothing specific.