Zigbee2mqtt error messages

Configuration
1

Sonoff Zigbee Bridge (tasmota zbbridge.bin latest)
MQTT mosquitto broker (standalone)
zigbee2mqtt add-on
Sengled Smart LED multicolor A19 bulb E21-N1EA

My log filled with the following error messages:

Zigbee2MQTT:error 2021-09-10 11:27:31: Publish 'set' 'brightness' to 'Sengled Color TV Back' failed: 'Error: Command 0xb0ce18140017ba27/1 genLevelCtrl.moveToLevelWithOnOff({"level":10,"transtime":0}, {"sendWhenActive":false,"timeout":10000,"disableResponse":false,"disableRecovery":false,"disableDefaultResponse":false,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null,"writeUndiv":false}) failed (Timeout - 60463 - 1 - 23 - 8 - 11 after 10000ms)'

Before buying some dimmers (thinking of IKEA remotes), I decided to test a mimic dimmer in Node RED (node-red-contrib-time-based-dimmer).

These error messages are caused by the following dimmer settings:

MinValue = 0
MaxValue = 100
Interval between steps = 200 ms
Step = 5
It looks like that some part of this integration freezes. After approximately 20-30 sec delay it resumes the dimming process again (from the point in time when it stopped to respond).

Could it be the Sonoff bridge or a bulb?

Can you help me to interpret this error message?

2

This error happens when the device does not respond to the coordinator. Could it be that these devices are out of range?

3

The color bulb’s linkquality 255. It is next to the Sonoff bridge. The bridge is close to the wifi AP.

4

Bad thing. ZigBee and WIFI can disturb each other.

5

Yes, I am aware of this issue. But I have set initially zigbee2mqtt zigbee on the channel 24. My AP wifi networks are on the channels 6 and 11. Just moved a bridge away from the AP and am still experiencing the same issue.

6

I have just switched to ZHA and it works smoothly with no issues. So, this is not a bridge and not a bulb to blame. Something definitely happens with zigbee2mqtt integration and I do not know what exactly (mqtt?)

EDIT:

In mosquitto log I have error messages like this:

1631300701: Client mqttjs_945a4736 disconnected.
1631300939: Socket error on client 5Y9pAmmCXT0at2NP743Hhx, disconnecting.

It probably happened during those stops.

7

ZigBee channel 24 overlaps with WIFI channel 11.

And support for the sonoff zbbridge is still ‘experimental’ in Zigbee2mqtt.

8

Having the same issue with a CC2652P flashed with latest z-stack. I have disabled 2.4GHz in my APs to mitigate issues there as best I can.

ZHA communicates with the bulbs flawlessly. Z2M does not. With Z2M I can turn the bulbs on and off but if I change the brightness the command times out, notably though the brightness changes.