Milesight AM307 MIC mismatch

End Devices (Nodes) Generic Node
1

Hi,

I try to connect the Milesight AM307 to TTN, but I am failing and get this error:

Join-request to cluster-local Join Server failed MIC mismatch

I know for sure that my deviceID and joinEU are the correct together with the lorawan version (1.1.0). Anybody an idea what I am doing wrong?

Here my settings on the TTN console:

image
image1138×354 24.6 KB

Here the settings I can do on the AM307:

F7351F3C-5944-463E-B4D8-E86A035EBD69
F7351F3C-5944-463E-B4D8-E86A035EBD691125×2436 185 KB

FA9FFE85-EE0A-473A-8898-274C1F7B5936
FA9FFE85-EE0A-473A-8898-274C1F7B59361125×2436 180 KB

618EA114-0BF6-4A37-8E58-768D58770B3F
618EA114-0BF6-4A37-8E58-768D58770B3F1125×2436 88.1 KB

2

BTW For TTN recommended RX2 DR is 3 - SF9, not SF12, indeed L-A spec discourages join at SF12. MIC mismatch usually suggests a key problem, so work your way through the full set character by character…

Also LW1.1.1 a challenge for many - can you try at 1.0.3, poss 1.0.4. and see if any luck there before step up to 1.1.1

3

Thanks! Looks like using LW1.0.3 is working. Don’t see all the data yet, but device is now accepted.

1 Like