# Error TTN rak2287

**URL:** <https://forums.balena.io/t/error-ttn-rak2287/365344>\
**Category:** Product support\
**Tags:** lora, raspberrypi4\
**Created:** [November 3, 2022, 8:33pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344 "2022-11-03T20:33:16Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![alhans](https://avatars.discourse-cdn.com/v4/letter/a/76d3ee/32.png) [@alhans](https://forums.balena.io/u/alhans)\
**Post date:** [November 3, 2022, 8:33pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/1 "2022-11-03T20:33:16Z")

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Hello,

I have a problem with my rak2287 with rpi4 and balena. I can’t connect it with TTN, I have configured some variables, but I think the error may be there. I don’t know if anyone has run into this error before.

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**Author:** ![xoseperez](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/xoseperez/32/4970_2.png) [@xoseperez](https://forums.balena.io/u/xoseperez)\
**Post date:** [November 4, 2022, 9:05am UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/2 "2022-11-04T09:05:15Z")

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I’m afraid you are providing very little information.  
What application are you using? Can you copy here the logs you get in the Balena Dasshboard and the variables you set?

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**Author:** ![mpous](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/mpous/32/4742_2.png) [@mpous](https://forums.balena.io/u/mpous)\
**Post date:** [November 4, 2022, 9:22am UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/3 "2022-11-04T09:22:12Z")

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@alhans welcome to the balena community!

As @xoseperez mentioned, please let us know more details about your configuration and logs/errors.

Havings said that, the variables are defined here → [GitHub - xoseperez/basicstation: Basics™ Station Packet Forward protocol using Docker](https://github.com/xoseperez/basicstation#basics-station-service-variables)

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**Author:** ![alhans](https://avatars.discourse-cdn.com/v4/letter/a/76d3ee/32.png) [@alhans](https://forums.balena.io/u/alhans)\
**Post date:** [November 4, 2022, 12:12pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/5 "2022-11-04T12:12:56Z")

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Antes de nada agradecero vuestro tiempo.  
Estas son las variables que yo tengo configurada.

 ![Variables](https://global.discourse-cdn.com/balena/original/2X/2/2631829e8ad43891534610b0616745e597f05b6d.jpeg)

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**Author:** ![mpous](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/mpous/32/4742_2.png) [@mpous](https://forums.balena.io/u/mpous)\
**Post date:** [November 4, 2022, 12:14pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/6 "2022-11-04T12:14:18Z")

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@alhans por qué tienes `USE_CUPS` a `1`?

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<div class="post-metadata">

**Author:** ![mpous](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/mpous/32/4742_2.png) [@mpous](https://forums.balena.io/u/mpous)\
**Post date:** [November 4, 2022, 12:15pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/7 "2022-11-04T12:15:46Z")

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Si quieres usar `CUPS` deberás usar `CUPS_KEY` en lugar the `TC_KEY`. Aunque si vas a usar TTN no necesitarías CUPS.

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**Author:** ![alhans](https://avatars.discourse-cdn.com/v4/letter/a/76d3ee/32.png) [@alhans](https://forums.balena.io/u/alhans)\
**Post date:** [November 4, 2022, 12:26pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/8 "2022-11-04T12:26:35Z")

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Siiiiii, era el CUPS, lo he quitado y ha conectado.

No entiendo muy bien que es el CUPS.

Gracias

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<div class="post-metadata">

**Author:** ![mpous](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/mpous/32/4742_2.png) [@mpous](https://forums.balena.io/u/mpous)\
**Post date:** [November 4, 2022, 12:32pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/9 "2022-11-04T12:32:01Z")

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Fantástico! Gracias por confirmar que te funciona!

Si quieres saber más de CUPS aquí puedes leer [https://lora-developers.semtech.com/build/software/lora-basics/lora-basics-for-gateways/?url=cupsproto.html](https://lora-developers.semtech.com/build/software/lora-basics/lora-basics-for-gateways/?url=cupsproto.html)

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<div class="post-metadata">

**Author:** ![xoseperez](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/xoseperez/32/4970_2.png) [@xoseperez](https://forums.balena.io/u/xoseperez)\
**Post date:** [November 4, 2022, 12:33pm UTC](https://forums.balena.io/t/error-ttn-rak2287/365344/11 "2022-11-04T12:33:19Z")

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CUPS es un servicio de configuración definido en BasicStation, sirve principalmente para hacer provisionamiento de gateways. Lo habitual cuando lo haces a mano es definir únicamente TC\_KEY y olvidarte de CUPS aunque algunos proveedores (como Actility) lo requieren.