We have an issue whereas a confirmed uplink reaches the network server and the end device doesn’t “hear” the downlink ack frame (it can happen ) the LoRaWAN stack will try several retransmission (in this case, 7).
The issue is that the fCnt won’t increment (normal behaviour) and the network server will say that it’s an “frame counter did not increment” error… which is fine because the uplink have reached application server… but it won’t respond to the subsequents confirmed uplinks and the end device will keep trying to retransmit the frame. Shouldn’t the NS respond anyway? I don’t want to disable frame counter validation as it will give me duplicated uplinks.
Thanks in advance!