# RAK2245 gateway with Balena "\[main\] failed to start the concentrator"

**URL:** <https://www.thethingsnetwork.org/forum/t/rak2245-gateway-with-balena-main-failed-to-start-the-concentrator/28747>\
**Category:** RAK Gateways\
**Created:** [August 6, 2019, 3:08am UTC](https://www.thethingsnetwork.org/forum/t/rak2245-gateway-with-balena-main-failed-to-start-the-concentrator/28747 "2019-08-06T03:08:56Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![delphinus](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/delphinus/32/25844_2.png) [@delphinus](https://www.thethingsnetwork.org/forum/u/delphinus)\
**Post date:** [August 6, 2019, 9:19am UTC](https://www.thethingsnetwork.org/forum/t/rak2245-gateway-with-balena-main-failed-to-start-the-concentrator/28747/4 "2019-08-06T09:19:00Z")

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Got it! Had to set the `SPI_SPEED` Device Variable to 2000000 which brought it up! I had tried earlier figures (eg 5000000 as per other posts) but not as low as 2. Thanks heaps for your help.

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