Zigbee2MQTT Network Key: Changing It Without Losing Groups/Scenes
Changing the Zigbee2MQTT network key re-pairs every device and drops groups and scenes. The startup error that follows, and how to rebuild them.
~/archive $ ls -la
Archive
Network Configuration
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Zigbee2MQTT Network Map Explained: Reading LQI and Depth
Zigbee2MQTT's map shows LQI, depth and zero-value links with no legend. What each number means, which ones are cosmetic, and the few that need action.
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Zigbee2MQTT Install Codes: Why Some Devices Need Them
Hit \"Unsupported install code\" in Zigbee2MQTT? Which devices need one, why the printed code often isn't the whole code, and how to add it locally.
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Zigbee2MQTT linkquality Explained: What the Number Means
Zigbee2MQTT's linkquality is a single-hop number measured at the coordinator. What it really tracks, why the network map disagrees, and when to act.
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Zigbee2MQTT Coordinator Backup and Restore: The Full Guide
Zigbee2MQTT backup and restore works on zstack and ember adapters only. How to trigger one, what's in it, and what a restore really gets you back.
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Changing Your Zigbee2MQTT Channel Without Losing Devices
Zigbee2MQTT broadcasts a channel change to paired devices on zstack and ember adapters. The config edit, sleepy devices, and the backup-file trap.
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Aqara/Xiaomi Zigbee Router Compatibility Explained
Some Zigbee routers can't keep Aqara or Xiaomi sensors connected. Which brands are documented as failing, why it happens, and the fix to try first.
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ZHA Network Map: Built-In Visualization vs Third-Party Tools
ZHA ships a built-in Zigbee mesh map, though the menu path has moved. Where to find it, how to read it, and when the ha-zigbee-map HACS panel earns its install.
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Zigbee2MQTT MQTT Broker Security: A Practical Checklist
A practical checklist for securing Zigbee2MQTT's Mosquitto broker and frontend, from the add-on's anonymous-access default onward. Every fix stays local.
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Block Tuya Devices From the Internet Without Losing Control
Blocking Tuya's cloud the naive way breaks local control. Here's the heartbeat mechanism behind it, and the blocking order that actually works.