
Zigbee2MQTT Network Key: Re-pairing and Group/Scene Recovery
Plan a Zigbee2MQTT network-key change with backups, re-pairing and group/scene checks. Understand adapter-specific startup behavior and recovery steps.

Plan a Zigbee2MQTT network-key change with backups, re-pairing and group/scene checks. Understand adapter-specific startup behavior and recovery steps.

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.

SonoffLAN documents a 2026 cloud power-update restriction. Check the local fix introduced in v3.11.0, exact device support and VLAN connectivity.

Aqara sells three different smart plugs: SP-EUC01 (EU), ZNCZ12LM (US) and ZNCZ15LM T1 (CN). Which one you own decides what Zigbee2MQTT actually gives you.

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.

Create and verify a Zigbee2MQTT data backup, check adapter-specific radio export limits, and plan coordinator migration and identity recovery.

Zigbee2MQTT broadcasts a channel change to paired devices on zstack and ember adapters. The config edit, sleepy devices, and the backup-file trap.

Create and load a Zigbee2MQTT external converter: exact device matching, a modern template, enable_external_js, runtime loading and invalid-code checks.

Repurpose the original SONOFF ZBBridge with verified UART wiring, separate ESP/NCP firmware steps and a local TCP setup. Check recovery and Wi-Fi limits.

Diagnose Zigbee2MQTT entities unavailable after a restart. Check current bridge-state refresh, MQTT discovery, birth messages and broker persistence.