I have a gateway where sporadically duplicate fcnt are not filtered and are forwarded to the mqtt topic by the on-gateway network-server.
These are most likely most likely retransmissions as SNR/RSSI and timestamps are different.
Re-joining the sensor does not help
Is something I can do to reduce the problem ? I was considering deduplication_delay but this is only for multiple gateways and a single network server.
@datnus Actually even for unconfirmed there is retransmission. The NS server sends the LinkADReq MAC command with NbTtrans that tell the device to re-sent the same message more times.
Do you have the skip frame-counter check enabled? In that case it could explain the duplicates. Note that changing this value becomes active after re-activating the device.
