About MIC error

jashon_w · July 19, 2019, 3:19am

When some node send join request, server report MIC error as follows:
data_base64=“AAEAAAAAAAAAR8gAABD///8oQ2u0BgY=” error=“join-request to join-server error: response error, code: MICFailed, description: invalid mic”

May I ask what’s reason?

brocaar · July 19, 2019, 8:28am

The MIC (Message Integrity Code) is validated using the root key of the device. So either the join-request is corrupted or the key does not match.

jashon_w · July 19, 2019, 8:52am

I checked the key. it is correct. Any other advice on that?

cstratton · July 19, 2019, 2:39pm

Perhaps the key endianess is wrong

Possible a mixup of LoRaWan versions in terms of the roles of keys

Re-used join nonces are rejected, hopefully with a distinct message but that could also be a concern

jashon_w · July 19, 2019, 2:45pm

You mean, I need use same version for app-server, network server and gateway-bridge?

jashon_w · July 22, 2019, 2:18am

When I enter the key, I have checked the LSB and MSB mode, Both returned same error. MIC invalid.

jashon_w · July 22, 2019, 2:51am

FYI, If you use the MSB to enter the device EUI, then it will report error, device doesn’t exist.

jashon_w · July 22, 2019, 3:12am

I am trying to compile the latest source code on Github.com, But it will report error:

github.com/brocaar/lora-app-server/internal/storage

…/github.com/brocaar/lora-app-server/internal/storage/storage.go:75:14: undefined: migrations.Asset
…/github.com/brocaar/lora-app-server/internal/storage/storage.go:76:14: undefined: migrations.AssetDir
make: *** [build] Error 2
Checked the source code as following picture:

It looks like the source code is not the latest.