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Fail to receive LoRaWAN 1.1 confirmed downlink ack #585

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msdade opened this issue May 5, 2022 · 0 comments
Open

Fail to receive LoRaWAN 1.1 confirmed downlink ack #585

msdade opened this issue May 5, 2022 · 0 comments

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@msdade
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msdade commented May 5, 2022

When device sends uplink with ACK bit set to 1 Chirpstack indicates it as error frame with error message "invalid MIC". This happens with LoRaWAN 1.1 OTAA and ABP. LoRaWAN 1.0.x OTAA and ABP works just fine.

If I manually set bit to 0 on device end before transmitting there is no error. Also when testing device with Actility ThingPark messages are received just fine with ACK bit set to 1.

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@msdade