ZHA: zigpy.exceptions.DeliveryError: Failed to deliver packet: <TXStatus.MAC_CHANNEL_ACCESS_FAILURE: 225>

[Hedda]

You should also get a USB 2.0 hub so don’t use USB 3.0 because its EMF/EMI/RMI. Read and follow:

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…