Oh really? Despite its claims to be Class-B compatible? okay, this if from 2015, LoRaWAN 1.1.x was not even on the horizon there…But maybe someone has tried this?
Do you know of any implementations for SX1272/SX1276/RFM95 Radio modules (and optimally the Arduino Plattform, may be another mcu than the Atmel AVRs though), that works with current Class B, at least compliant to LoRaWAN 1.0.3 spec?