We need to disable channels at the server that sends downlink frames back to RN2903 LoRa node that sends frames with SF11 and SF12. For this nodes, they dont accept SF more than 10, so when we ask for a confirmation from the server and the server sends a downlink with SF11 we just cant get the confirmation and our application stops. Please, can you tell us how to configure this at server?
We want to configure just the downlink channels and spread factors, from Brazill, using US configuration.
Rogério Cassares Pires