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Zigbee2MQTT - Error...
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[Solved] Zigbee2MQTT - Error: Failed to connect to the adapter (ZBDongle-E)

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Joined: 11 years ago
Posts: 2705
Topic starter  

(still learning as I write this)

So Home Assistant seems to have two ways to chat natively with Zigbee devices, as long as you have Zigbee Coordinator (hardware) installed. Which I do, I actually bought one that was recommended on this Home Assistant page, I selected the ITead SONOFF Zigbee 3.0 USB Dongle Plus Model “ZBDongle-E” (EFR32MG21 variant - mine is listed as "V2").

The default way worked very good - hardly any effort to install and get it working.

However ... Since I am still in my experimentation phase, and I did run into some Zigbee devices that didn't quite work as expected, I decided to give Zigbee2MQTT a try.

For some reason Zigbee2MQTT kept failing and the log kept saying that it couldn't connect to the Zigbee Coordinator (make sure to disable the "Zigbee Home Automation" under "Devices & Services").

Log message:

Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms)

Seem for this particular dongle we need to specify the chipset/dongle in the config of Zigbee2MQTT (more info).
The ZBDongle-E uses a different chip, the Silicon Labs EFR32MG21 which uses Zigbee Stack EmberZNet (EZSP v8). (adapter settings documentation)

That being said, after explicitly specifying adapter: ezsp Zigbee2MQTT starts successfully.

Here my settings:

Hope this is helpful for other HA users 😊