# ESP32 Node not sending

**URL:** <https://www.thethingsnetwork.org/forum/t/esp32-node-not-sending/33176>\
**Category:** LMIC\
**Created:** [January 6, 2020, 7:33pm UTC](https://www.thethingsnetwork.org/forum/t/esp32-node-not-sending/33176 "2020-01-06T19:33:13Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\
**Post date:** [January 12, 2020, 3:38pm UTC](https://www.thethingsnetwork.org/forum/t/esp32-node-not-sending/33176/6 "2020-01-12T15:38:27Z")

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If you’re sure the frame counter security is not an issue, and if you’ve triple-checked the keys and DevAddr, then all I can suggest is trying with a larger SF to increase the reach, and [How to contact a gateway owner?](https://www.thethingsnetwork.org/forum/t/how-to-contact-a-gateway-owner/6127) if that doesn’t help.

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