Zigbee2MQTT Battery Device Config Fails? It’s Asleep
A Zigbee2MQTT config change on a battery device reverts because it was asleep. The parent holds it 7.68 seconds. How to land the command first time.
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troubleshooting
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Sonoff S26R2ZB Zigbee Plug: Zigbee2MQTT and ZHA Setup
Sonoff's discontinued S26R2ZB still pairs on Zigbee2MQTT and ZHA. The light-vs-switch entity split, and why Z2M's own docs call it a mediocre router.
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Zigbee2MQTT Coordinator Flash Failed: How to Recover
A failed coordinator flash isn't automatically a brick. Here's how to identify what happened and pick the right recovery tool for your chip family.
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Zigbee2MQTT Dropped Node.js 20: Bare-Metal Upgrade Guide
Zigbee2MQTT 2.13.0 removed Node.js 20. Who's affected, why the supported versions are an allowlist and not a floor, and how to upgrade without breakage.
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Zigbee2MQTT QoS Explained: What It Actually Guarantees
Understand Zigbee2MQTT MQTT QoS, subscription limits, availability and discovery settings, and why MQTT delivery does not prove Zigbee execution.
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Zigbee2MQTT Discovery Not Working in Home Assistant
Zigbee2MQTT devices missing from Home Assistant? Check fresh MQTT reports, entity registration, retained discovery, effective settings and broker permissions.
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Zigbee2MQTT Transmit Power: Why It Might Do Nothing
Understand Zigbee2MQTT transmit power by adapter and firmware, why LQI is not an RF-output measurement, and what current settings and logs can establish.
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Tuya on an IoT VLAN with Home Assistant: What Breaks
Set up Tuya Wi-Fi devices across an IoT VLAN. Check broadcast discovery, routed TCP control, manual setup, firewall rules and Docker networking.
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Tuya Local Key Stopped Working? Check Pairing, Network and Protocol
Troubleshoot a Tuya local key that stopped working. Check pairing, device ID, network access, protocol support and cloud lookup errors before resetting.
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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.