Trouble adding more than 30 devices via Zigbee2MQTT

[Stiltjack]

@Ziyadah

And is it really that sensitive to router vs end device? I’m running a 1:3 ratio right now (9 routers and 1 coordinator, 21 end devices (the Sengled lights) with solid connections everywhere, how many routers vs dedicated end devices do I actually need?

It depends entirely on the layout and structure of your home - there isn’t an optimum ratio - but yes, Zigbee can be very sensitive to the number of routers.

Apart from issues of range and interference, there’s a limit to the number of devices a router can connect to. Lots of good advice here:

Zigbee networks: how to guide for avoiding interference + optimizing using Zigbee Router devices (repeaters/extenders) to get best possible range and coverage

Who is this guide for? I have tried to make this guide to be a comprehensive collection of the most basic yet essential tips with a set of actions and best practice steps that should be applicable to all types of Zigbee setups, regardless of what type of Zigbee adapter/gateway/hub/bridge/devices that you are using, however, it has been written with a point-of-view in mind of Zigbee solutions that use a Zigbee Coordinator adapter locally via USB dongle/stick or remotely using a serial server ove…