CLASS C NOT SENDING ANY PACKET. I-CUBE-LRWAN 1.3.1. Class C

Hello,

Can someone help me?

I work with STM32CubeIDE, I-CUBE-LRWAN, Import End_Node Project example, config everything to work on Class C.

Device successfully join to the network, and switch to class C done appears on Serial terminal. But, when the uplink interval comes, and serial terminal showing SEND REQUEST , there is no packet comes to the gateway (monitored over Gateway dashboard from Network Server) while Class A with same hardware and Project Files on STM32CubeIDE works.

Class C is needed because I need to control relay output simultaneously.

I tried on SX1276, SX1272 Mbed board, with Nucleo-L073, also on B-L072Z-LRWAN1, nothing different.

We use RisingHF Network Server, Nucleo Gateway and Rising HF Gateway.

Thank you