Zigbee2mqtt not stable with my installation

Configuration
1

Hi,

I am having trouble with zigbee2mqtt with my home assistant installtion. I have set it up as per the documentation. However devices are discovered and removed sporadically. I am trying to troubleshoot the issue by looking at the debug log of mqtt. I found the following:

2020-09-18 08:53:15 INFO (MainThread) [homeassistant.components.mqtt.discovery] Found new component: sensor 0x00158d0003ef175e linkquality
2020-09-18 08:53:15 DEBUG (MainThread) [homeassistant.components.mqtt] Subscribing to zigbee2mqtt/0x00158d0003ef175e
2020-09-18 08:53:15 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/binary_sensor/0x00158d0003ef175e/contact/config: b''
2020-09-18 08:53:15 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on zigbee2mqtt/bridge/state (retained): b'online'
2020-09-18 08:53:15 INFO (MainThread) [homeassistant.components.mqtt.discovery] Component has already been discovered: binary_sensor 0x00158d0003ef175e contact, sending update
2020-09-18 08:53:15 INFO (MainThread) [homeassistant.components.mqtt] Got update for entity with hash: ('binary_sensor', '0x00158d0003ef175e contact') '{}'
2020-09-18 08:53:15 INFO (MainThread) [homeassistant.components.mqtt] Removing component: binary_sensor.0x00158d0003ef175e_contact
2020-09-18 08:53:15 DEBUG (MainThread) [homeassistant.components.mqtt] Subscribing to zigbee2mqtt/0x00158d0003ef175e
2020-09-18 08:53:15 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/sensor/0x000d6ffffe9cbcd6/linkquality/config: b'{"availability_topic":"zigbee2mqtt/bridge/state","device":{"identifiers":["zigbee2mqtt_0x000d6ffffe9cbcd6"],"manufacturer":"IKEA","model":"TRADFRI signal repeater (E1746)","name":"0x000d6ffffe9cbcd6","sw_version":"Zigbee2MQTT 1.14.4"},"icon":"mdi:signal","json_attributes_topic":"zigbee2mqtt/0x000d6ffffe9cbcd6","name":"0x000d6ffffe9cbcd6_linkquality","state_topic":"zigbee2mqtt/0x000d6ffffe9cbcd6","unique_id":"0x000d6ffffe9cbcd6_linkquality_zigbee2mqtt","unit_of_measurement":"lqi","value_template":"{{ value_json.linkquality }}"}'
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Subscribing to zigbee2mqtt/bridge/state
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/sensor/0x00158d0003ef175e/battery/config: b''
2020-09-18 08:53:16 INFO (MainThread) [homeassistant.components.mqtt.discovery] Found new component: sensor 0x000d6ffffe9cbcd6 linkquality
2020-09-18 08:53:16 INFO (MainThread) [homeassistant.components.mqtt.discovery] Component has already been discovered: sensor 0x00158d0003ef175e battery, sending update
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/binary_sensor/0x000d6ffffe9cbcd6/update_available/config: b'{"availability_topic":"zigbee2mqtt/bridge/state","device":{"identifiers":["zigbee2mqtt_0x000d6ffffe9cbcd6"],"manufacturer":"IKEA","model":"TRADFRI signal repeater (E1746)","name":"0x000d6ffffe9cbcd6","sw_version":"Zigbee2MQTT 1.14.4"},"json_attributes_topic":"zigbee2mqtt/0x000d6ffffe9cbcd6","name":"0x000d6ffffe9cbcd6_update_available","payload_off":false,"payload_on":true,"state_topic":"zigbee2mqtt/0x000d6ffffe9cbcd6","unique_id":"0x000d6ffffe9cbcd6_update_available_zigbee2mqtt","value_template":"{{ value_json.update_available}}"}'
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/sensor/0x00158d0003ef175e/linkquality/config: b''
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/binary_sensor/0x00158d00041a3afa/contact/config: b'{"availability_topic":"zigbee2mqtt/bridge/state","device":{"identifiers":["zigbee2mqtt_0x00158d00041a3afa"],"manufacturer":"Xiaomi","model":"Aqara door & window contact sensor (MCCGQ11LM)","name":"0x00158d00041a3afa","sw_version":"Zigbee2MQTT 1.14.4"},"device_class":"door","json_attributes_topic":"zigbee2mqtt/0x00158d00041a3afa","name":"0x00158d00041a3afa_contact","payload_off":true,"payload_on":false,"state_topic":"zigbee2mqtt/0x00158d00041a3afa","unique_id":"0x00158d00041a3afa_contact_zigbee2mqtt","value_template":"{{ value_json.contact }}"}'
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on homeassistant/sensor/0x000d6ffffe9cbcd6/linkquality/config: b''
2020-09-18 08:53:16 DEBUG (MainThread) [homeassistant.components.mqtt] Received message on zigbee2mqtt/bridge/state (retained): b'online'
2020-09-18 08:53:16 INFO (MainThread) [homeassistant.components.mqtt] Got update for entity with hash: ('sensor', '0x00158d0003ef175e battery') '{}'
2020-09-18 08:53:16 INFO (MainThread) [homeassistant.components.mqtt] Removing component: sensor.0x00158d0003ef175e_battery

I am not sure if I found it, but what does “Removing component: binary_sensor.0x00158d0003ef175e_contact” mean? Why did it remove it? can someone explain?

2

It seems I solved the issue, but not sure. Can someone confirm I cannot use two zigbee2mqtt connecting to one broker using one base topic?
I am using on both zigbee2mqtt
base_topic: zigbee2mqtt

3

You can’t. Each zigbee2mqtt instance needs it own base topic and panid. If you use the same base topic, incoming messages get relayed to both coordinators, which causes unpredictable behavior.

4

Thanking for confirming the issue. This is exactly what was happening.