Zigbee2MQTT not starting after device change

Configuration Zigbee
1

Hey all,

I recently made a major change in my HA setup - switched from RPi 3 to RPi 4 in a Geekwork Naspi case, and from SD card to SSD. So far, so good - backup restoration went without problems. Only, Zigbee2MQTT is not starting. It generates the following log:

Starting Zigbee2MQTT without watchdog.
[2024-10-29 00:20:41] info: 	z2m: Logging to console, file (filename: log.log)
[2024-10-29 00:20:41] info: 	z2m: Starting Zigbee2MQTT version 1.40.2 (commit #unknown)
[2024-10-29 00:20:41] info: 	z2m: Starting zigbee-herdsman (2.1.3)
[2024-10-29 00:20:41] error: 	zh:zstack:znp: Failed to determine if path is valid: 'Error: spawn udevadm ENOENT'
[2024-10-29 00:20:41] info: 	zh:zstack:znp: Opening SerialPort with {"path":"/dev/ttyUSB0","baudRate":115200,"rtscts":false,"autoOpen":false}
[2024-10-29 00:20:41] info: 	zh:zstack:znp: Serialport opened
[2024-10-29 00:20:41] info: 	zh:zstack:znp: Writing CC2530/CC2531 skip bootloader payload
[2024-10-29 00:20:43] info: 	zh:zstack:znp: Skip bootloader for CC2652/CC1352
[2024-10-29 00:21:01] error: 	z2m: Error while starting zigbee-herdsman
[2024-10-29 00:21:01] error: 	z2m: Failed to start zigbee
[2024-10-29 00:21:01] error: 	z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start.html for possible solutions
[2024-10-29 00:21:01] error: 	z2m: Exiting...
[2024-10-29 00:21:01] error: 	z2m: Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms)
    at ZStackAdapter.start (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/zStackAdapter.ts:113:27)
    at Controller.start (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:137:29)
    at Zigbee.start (/app/lib/zigbee.ts:69:27)
    at Controller.start (/app/lib/controller.ts:161:27)
    at start (/app/index.js:154:5)

Does anyone have an idea what the issue is? For reference, I am using a Slaesh CC2652 Zigbee stick that is plugged into a USB 2 slot, with an extension cable of 1 meter.

2

Your device path to the stick might have changed.

If you run home assistance is, you can check it via the web interface somewhere under hardware.

3

And this can actually change. Search the forum for “Serial by ID” for a better way of specifying your adaptor location. e.g. 2023.2: How can I Assist? - #175 by petro

4

Thank you - for whatever reason, it had no effect when I did it yesterday, but worked today. It only kind of works now - for whatever reason, it appears that the Zigbee channel was originally set to 15, and was reset to 11. After changing that, I can toggle about 2/3 of my devices again. The remaining seem to have lost connection.