Some MQTT devices greyed out after HA restart

[francisp (Francis)]

If they are not listed in Zigbee2MQTT, they dropped off your network, probably has nothing to do with the reboot.

• use a USB extension cable and make sure your dongle is plugged in an USB2 port
• repair your devices, mains powered first, then the battery ones
• make sure you have enough mains powered devices, so you have a strong Zigbee mesh.

Also, this topic can be usefull

Zigbee networks: how to guide for avoiding interference and optimize for getting better range + 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…