# ESP32-C3-Super-Mini not connecting to WiFi channel \> 6

**URL:** <https://discourse.nodered.org/t/esp32-c3-super-mini-not-connecting-to-wifi-channel-6/88719>\
**Category:** Hardware\
**Created:** [15 June 2024 17:23 UTC](https://discourse.nodered.org/t/esp32-c3-super-mini-not-connecting-to-wifi-channel-6/88719 "2024-06-15T17:23:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dynamicdave](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dynamicdave/32/96_2.png) [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Post date:** [15 June 2024 17:23 UTC](https://discourse.nodered.org/t/esp32-c3-super-mini-not-connecting-to-wifi-channel-6/88719/1 "2024-06-15T17:23:52Z")

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Just found out by 2-hrs of frustration that the ESP32-C3-Super-Mini won't connect to any WiFi channels higher than channel 6. I'm using it to send T/H/P readings via MQTT to Node-RED.  
 ![sat_ESP32](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/8/1810c52699433b881a131529020bfb6ae35d0541.png)  
I suspect the reason is the physical size of the ceramic antenna labelled C3 in the photo above.

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**Author:** ![Sean-McG](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sean-mcg/32/54677_2.png) [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Post date:** [16 June 2024 06:41 UTC](https://discourse.nodered.org/t/esp32-c3-super-mini-not-connecting-to-wifi-channel-6/88719/2 "2024-06-16T06:41:14Z")

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> [@dynamicdave](#):
>
> ESP32-C3-Super-Mini won't connect to any WiFi channels higher than channel 6

There do seem to be a number of people reporting wi-fi issues -

[https://www.reddit.com/r/esp32/comments/1cu96tz/esp32\_doesnt\_like\_wifi\_channel\_11/](https://www.reddit.com/r/esp32/comments/1cu96tz/esp32_doesnt_like_wifi_channel_11/)

> **[ESP-C3-Super-Mini :: ESP3D Ecosystem](https://esp3d.io/esp3d/v3.x/hardware/esp_boards/esp32-c3/esp-c3-super-mini/index.html)**
>
> ESP-C3-Super-Mini

> **[ESP32-C3 Custom Board WiFi not working \[SOLVED\] - ESP32 Forum](https://www.esp32.com/viewtopic.php?t=26106)**
>
> Espressif ESP32 Official Forum

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**Author:** ![dynamicdave](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dynamicdave/32/96_2.png) [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Post date:** [16 June 2024 15:34 UTC](https://discourse.nodered.org/t/esp32-c3-super-mini-not-connecting-to-wifi-channel-6/88719/3 "2024-06-16T15:34:42Z")

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**Quick update**  
I did a range check with the ESP32-C3-Super-Mini by placing it in my greenhouse at the end of my garden. Line-of-sight distance from the node to the nearest access point was 25m (82 feet).

 ![Sunday_range_check_A](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/2/b2644a9d356188a0439912dbde4a6e7eeade7e53.jpeg)

It is sat next to another PCB fitted with an ESP32-S2-Mini - with a "squiddly" antenna.

 ![Sunday_range_check_B](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/2/3/232bc52f878d628cf8f111833f399336b1802139.jpeg)

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [14 September 2024 15:35 UTC](https://discourse.nodered.org/t/esp32-c3-super-mini-not-connecting-to-wifi-channel-6/88719/4 "2024-09-14T15:35:24Z")

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