# Zigbee2MQTT bug or strange behavior

**URL:** <https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985>\
**Category:** Configuration\
**Tags:** zigbee2mqtt\
**Created:** [February 22, 2022, 8:22am UTC](https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985 "2022-02-22T08:22:21Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![pascal\_sapin](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/pascal_sapin/32/8958_2.png) [@pascal\_sapin](https://community.gladysassistant.com/u/pascal_sapin)\
**Post date:** [February 22, 2022, 8:22am UTC](https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985/1 "2022-02-22T08:22:21Z")

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hello  
my installation has been working for some time now, I would need explanations regarding the Z2M interface that I have trouble understanding. Already from a quality of reception or db point of view, the famous LQI, in the dashboard I have certain values, and in the diagram I have others? Another point, I removed the battery for 2 days from one of the sensors and Z2M still says connected, I’m losing my Latin or is the interface bugged?

see screenshot

 ![image](https://gladys-assistant-community.b-cdn.net/uploads/default/original/2X/5/539bc320a250d0c10d6549463e99a92d6188f24d.png)  
 ![image](https://gladys-assistant-community.b-cdn.net/uploads/default/original/2X/8/8547c6b6c5ad9a271bc0e7f73dfc2b07026361e9.png)  
 ![image](https://gladys-assistant-community.b-cdn.net/uploads/default/original/2X/0/0e05ce41c0331c71fade809b4b6281699412e4e1.png)

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**Author:** ![VonOx](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/vonox/32/10128_2.png) [@VonOx](https://community.gladysassistant.com/u/VonOx)\
**Post date:** [February 22, 2022, 8:48am UTC](https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985/2 "2022-02-22T08:48:19Z")

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It’s not us who develop zigbee2mqtt (it’s an independent project from gladys)

The LQI changes constantly, and the map is not real-time, it is generated on demand.

The term «&nbsp;connected&nbsp;» is not appropriate, it should rather be translated as «&nbsp;part of the network&nbsp;» & «&nbsp;paired&nbsp;»

Your values are extremely low, in my opinion it’s not the right technology for your use case.

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**Author:** ![pascal\_sapin](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/pascal_sapin/32/8958_2.png) [@pascal\_sapin](https://community.gladysassistant.com/u/pascal_sapin)\
**Post date:** [February 22, 2022, 11:09am UTC](https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985/3 "2022-02-22T11:09:12Z")

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hello, ok thanks for the reply, I know that Z2M is independent.

my values are low even though my sensors are only a few meters away, for example the humidity sensor, 2m at most, the others 3 or 4 not even that, well I have a concrete wall separating the Ziegbee key from my sensors but still, I even replaced the antenna with one with more gain

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**Author:** ![VonOx](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/vonox/32/10128_2.png) [@VonOx](https://community.gladysassistant.com/u/VonOx)\
**Post date:** [February 22, 2022, 11:34am UTC](https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985/4 "2022-02-22T11:34:55Z")

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I’m not a radio expert, I couldn’t help you.

I have a house with sensors on 4 levels (Basement - Ground Floor - Floor - Attic + Exterior). I don’t have values as low as that, even for the farthest sensor.

Apart from the fact that your values are low, are your sensors working? Are the data being transmitted?

If that’s the case, no need to dig deeper 😉

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**Author:** ![pascal\_sapin](https://gladys-assistant-community.b-cdn.net/user_avatar/community.gladysassistant.com/pascal_sapin/32/8958_2.png) [@pascal\_sapin](https://community.gladysassistant.com/u/pascal_sapin)\
**Post date:** [February 22, 2022, 12:31pm UTC](https://community.gladysassistant.com/t/zigbee2mqtt-bug-ou-fonctionnent-bizarre/6985/5 "2022-02-22T12:31:51Z")

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hello, the strangest thing is that the sensors work even at 0  
for the mailbox I took the RF solution from sonof, but with a modified 1/2 wave antenna on 443 I have more than 20m between my mailbox and the cellar