I'm new to the forums so apologies if this has been answered before but I've done a search and can't find anything on this topic...
I'm not able to Receive data/ack from RAK831 gateway to lora end-node
note: I'm able to receive data/packets from lora end-node to Gateway
my configuration is
A RAK831 433MHz version
I follow the instruction of https://www.thethingsnetwork.org/labs/story/rak831-lora-gateway-from-package-to-online to make raspberry-pi3 based lora gateway
I just modify the global_config.json file according to Rak support recommendation and with my 433 frequency plan, config file given in below link.
http://support.rakwireless.com/uploads/files/1516933601249-global_config_eu433.json
For the end-node I’m using a custom board with RFM98W 433mhz LoRa and Arduino Mini Pro. https://www.aliexpress.com/item/1pcs-Lora-Radio-Node-V1-0-SX1278-Rola-433Mhz-Radio-Module-ATmega328P-RFM98-Wireless-DIY-Kit/32859077350.html
For this testing I use basic tests programs comes with lora gateway library util_pkt_logger program for record all the packets received in a log file and util_tx_test program to send test packets with a LoRa concentrator