I’m having a connection problem on my Zigbee network: some devices disconnect from time to time and then reconnect, while others disconnect.
I have 59 sensors and a SONOFF Zigbee 3.0 USB Dongle Plus ZBDongle-P dongle. There is a limitation issue with this model that requires flashing the dongle, which I did and it went well.
But is that really the case? I feel like the dongle can’t support all these devices, some disconnecting to allow others to reconnect. The devices that disconnect are always motion detectors and door/window contact sensors.
What do you think?
And which dongle do you use for that many sensors?
From what I read on the official Sonoff documentation:
50 Zigbee child devices can be added directly to the ZBDongle-P in coordinator mode and a maximum of 200 Zigbee devices with routers.
30 Zigbee child devices can be added directly to the ZBDognle-E in coordinator mode and 30 additional Zigbee devices with a router, no limit on the firmware but this depends on platforms.
For your network to be stable, there are several points to check:
Zigbee mesh network: Do you have enough routers? If you mainly have battery-powered Zigbee devices, maybe your network would benefit from having more mains-powered devices (bulbs, plug?)
Interference and range: Zigbee operates at 2.4 GHz, so it can suffer interference from Wi‑Fi or other devices. Check device distribution and the distance between the dongle and the furthest sensors.
PS: I took the liberty of editing your post with AI for better readability
Feel free to use the forum tool that’s made for that:
