RAK4270 compatibility with Fipy module

Issue: We can not communicate RAK4270 module with the Fipy module.
All parameters and settings are the same on both modules and we don’t have LoRa communication.

Setup:RAK4270 module connected to a Raspberry Pi 3B+ on one end and a Fipy o the other end.

Server: Communication is direct between the two modules RAK4270 and Fipy.

Details:

Welcome to RAK forum @giabrega ,

Are the two RAK4270 modules able to communicate to one another? I tried looking at the documentation of Pycom for the Fipy but I can’t figure out where to look. I don’t have a Fipy to test but if you can share its documentation, I can have a look.