I have two gateway.( RHF2S208 and RaspberryPi Gateway ). They are located in a common place. RHF2S208 receive all of packets from end-devices and send ACK to end-device but RaspberryPi Gateway isn’t stable. It receive just some packets also doesn’t send ACK.
I have used this source code for RaspberryPi Gateway: https://github.com/Lora-net/packet_forwarder
also I have used RHF0M0301 module. (This module used in RHF2S208)
How can I fix this problem?