Join request not followed by a join accept

Michel_Kuenemann · August 27, 2020, 2:03pm

Hi all,

I am running chirpstack-gateway-os-full-raspberrypi3-20200316141233.rootfs.wic.gz with a RAK2245 and everything is fine.

I have registered a “TheThingsUno” device and I receive its data seamlessly.

I have registered another device. The Join accept frame appears, but Chirpstack does not accept it.
Is there a reason for this ?

Thank you
Michel

eugenev · August 27, 2020, 2:10pm

possibly wrong
DevEUI, AppKey

Michel_Kuenemann · August 27, 2020, 2:17pm

Hello,

Thanks for prompt reply and suggestions. This device was also registered with the same keys on the Objenious (France) network and its Join requests are accepted there.

I have already had this issue in the past, in this case the DevEUI was ok, but the AppKey was false.

I have deleted and re-created it. I will go on searching.

Michel

Michel_Kuenemann · August 27, 2020, 2:32pm

I have reactivated the device in the Objenious network and here is the result:

It looks as if there is an issue in the MIC calculation. Can this error explain the beahvior of ChirpStack ?

I will dig into this.

Michel

Moss · August 20, 2021, 6:39am

Its says invalid MIC, meaning that the keys at the end node are wrong! Try to use LSB format instead.
Good luck