# Unsure about LQI / blue line in the network diagram

**URL:** <https://forum.phoscon.de/t/unsure-about-lqi-blue-line-in-the-network-diagram/6940>\
**Category:** General\
**Created:** [September 27, 2026, 1:19pm UTC](https://forum.phoscon.de/t/unsure-about-lqi-blue-line-in-the-network-diagram/6940 "2026-09-27T13:19:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![xrstf](https://forum.phoscon.de/user_avatar/forum.phoscon.de/xrstf/32/5722_2.png) [@xrstf](https://forum.phoscon.de/u/xrstf)\
**Post date:** [September 27, 2026, 1:19pm UTC](https://forum.phoscon.de/t/unsure-about-lqi-blue-line-in-the-network-diagram/6940/1 "2026-09-27T13:19:42Z")

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I am trying to integrate an ESP32-C6 as a router into my new network (the device on top in the diagram below), but the signal quality seems not to be great. Regardless, I looked into the Source Routing options in deCONZ and had the fast neighbor discovery enabled for a bit.

Now I see a straight blue-ish line in the network and the documentation doesn’t seem to explain what this line represents. What does this line mean?

Additionally, I enabled the LQI indicators in the graph, which is helpful, but when I do an internet search for what these numbers mean, all the pages I find only talk about a _single_ number, not a pair. The documentation doesn’t go into detail what the numbers mean, neither which number means what. I assume it’s obvious to more experienced engineers, but I can only guess: it’s up/down? down/up?

This is on Windows 10 with deCONZ v2.33.2, using a ConBee III as the coordinator.

 ![2026-09-27 15_11_32-deCONZ - ConBee III (__._COM5)](https://forum.phoscon.de/uploads/default/original/2X/a/a6299c996194ff5f0cca8a5ee1ddb3e5cb74dc69.png)

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**Author:** ![Smanar](https://forum.phoscon.de/user_avatar/forum.phoscon.de/smanar/32/60_2.png) [@Smanar](https://forum.phoscon.de/u/Smanar)\
**Post date:** [September 27, 2026, 2:54pm UTC](https://forum.phoscon.de/t/unsure-about-lqi-blue-line-in-the-network-diagram/6940/2 "2026-09-27T14:54:29Z")

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Hello you will found some help here

> **[LQI explained](https://github.com/dresden-elektronik/deconz-rest-plugin/wiki/LQI-explained)**
>
> deCONZ REST-API plugin to control ZigBee devices. Contribute to dresden-elektronik/deconz-rest-plugin development by creating an account on GitHub.

and

> **[Source Routing](https://github.com/dresden-elektronik/deconz-rest-plugin/wiki/Source-Routing)**
>
> deCONZ REST-API plugin to control ZigBee devices. Contribute to dresden-elektronik/deconz-rest-plugin development by creating an account on GitHub.

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<div class="post-metadata">

**Author:** ![xrstf](https://forum.phoscon.de/user_avatar/forum.phoscon.de/xrstf/32/5722_2.png) [@xrstf](https://forum.phoscon.de/u/xrstf)\
**Post date:** [September 27, 2026, 3:12pm UTC](https://forum.phoscon.de/t/unsure-about-lqi-blue-line-in-the-network-diagram/6940/3 "2026-09-27T15:12:05Z")

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Thank you very much, it didn’t occur to me to check the GitHub wiki.