OTAA fail: No accept for join

End Devices (Nodes)
1

Hi,
trying to connect an end node. Standard LRWAN stack for AT_slave. All parameters check out.
Join message received on gateway, but no response and no join accepted.
Device is not seen, and no data on device or application.
End-node: st micro B-L072Z-LRWAN1
Stack: I-NUCLEO-LRWAN1 AT-slave application
Gateway: ic880a on raspberry.

Any and all pointers welcome, I have been struggling for a while on this. Also tried ABP without success : Message received on gateway (as seen in ttn console), but no data in app or device and no downlink message.

image
image

2

Packet on gateway with EUIs matching node in application and no data/join requests in application means the key does not match 95% of the time.

3

Seems the keys match.
From node:
ATtention command interface
OTAA Mode enabled
DevEui= 31-31-35-38-62-37-93-18
JoinEui= 70-B3-D5-7E-D0-01-CA-E6
AppKey= DD FA A2 C7 D4 63 98 36 5D BF BC 98 1D 33 6B 0A

From console:
image

4

I cannot see you code but I had the same sort of issue and then discovered that the APPEUI and DEVEUI are defined little endian and the APPKEY for some reason has to be specified as big endian format. Maybe this is your issue?

5

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