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Associate III
April 7, 2026
Solved

LoRaWAN_End_Node_LBM

  • April 7, 2026
  • 2 replies
  • 165 views

Hello,

I am having some hard time to connect my nucleo-wl55jc1 to any LNS, even though i checked that Device, Join, and App EUIs are all correct and there is no mismatch, but whichever LNS I try, I always get the same result

 

First, I tried with an indoor RAK gateway, these gateways use MAC version 1.0.3, and the nucleo example uses version 1.0.4

 

Then I tried using MeteoScientific LNS and Helium network, could not join as well.

 

Finally I tried to connect LORIOT to my RAK gateway, and they successfully connected, but still the nucleo could not join the server, and the gateway did not transfer any packets.

 

Even though the steps are fairly simple, I don't know what is the problem here

 

 

 
 

Capture.PNG

what is the meaning of "Event received: RESET" in the nucleo serial logs?

Best answer by onass

Thanks! @JHCarter 

I was connecting a multimeter in series to JP1 to measure the current consumption, the internal resistance of that multimeter is 100 ohm, that forced the RF module to reset everytime

2 replies

JHCarter
Associate III
April 9, 2026

I also use an indoor RAK gateway and had this issue.  For me it was the fact that the DevEUI I entered in CubeMX was ignored and a unique DevEUI was generated by the application.  See this post: lorawan-end-node-possible-deveui-bug .

onassAuthorBest answer
Associate III
April 12, 2026

Thanks! @JHCarter 

I was connecting a multimeter in series to JP1 to measure the current consumption, the internal resistance of that multimeter is 100 ohm, that forced the RF module to reset everytime