Failed CRC check in OTAA

[laurent brunet]

Hello,

I have made most of my testing using ABP. Right not ABP is working perfectly fine and I want to move over to using OTAA.

My device seems to connect correctly and gets the answer from the gateway correctly. The problem is that once it’s in send mode, the device I start to miss a lot of packets on the gateway and can red Recv’d frame failed CRC check on the gateway’s debug.

I am receiving some packets but not all of them and I do receive all of them when joining with ABP. Anybody has an idea of what may cause this?

Thanks,

Laurent

[laurent brunet]

It was caused by bad channel mask on my device side so no need to answer!

Thanks

[Pascal]

Hello

I have similar issue to join with otaa … the Adress is Ok in the server but the device is not receiving it.

How do you fix the channel mask issue ?

thanks for help

Pascal

[laurent brunet]

If you’re using LoRaMac-node :

mibReq.Type = MIB_CHANNELS_MASK;
mibReq.Param.ChannelsMask = multitechGatewayChannelsMask;
LoRaMacMibSetRequestConfirm( &mibReq );

Just set your channel mask to whatever you want this way.

[Author]

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