Confirmed uplinks doesn’t work (RN2903)

Devices
1

Hi everyone,
I am Luis,

I have problems with confirmed uplinks.
I don’t have any problems with unconfirmed uplinks and downlinks. Now I need confirmed uplinks and it doesn’t work.
I would appreciate any help you could give me with this.

1. I am using RN2903 Firmware v1.0.5 (AU915 version, class C) in my nodes, so I read RN2903 SA (AU915) LoRa Technology Module Command Reference User’s Guide, then I do this:

image

But I get the same answer for unconfirmed (max tx uncnf 3 00001) and confirmed uplinks (mac tx cnf 4 AB).

image

2. My node (RN2903) is configured this way

AR: OFF, DR:0, ADR: OFF, CLASS:C,

But before the confirmed uplink (mac tx cnf 4 AB) I set
AR: ON, ADR: ON

I use OTAA mode and channels 1,2,3,4,5,6,7,8 for uplinks. AU915 configuration.
image

3. My server is configured this way
a. Device supports Class-C: yes
b. LoRaWAN Regional Parameters revision: A
c. LoRaWAN MAC version: 1.0.3
d. AU915 configuration

4. In loraserver i get this for confirmed uplinks mac tx uncnf 4 AB:

image
image

It seems downlinks channels don’t match with uplinks channels, perhaps this is the problem.

Any help would be appreciated, thanks

2

I believe when you get a mac_tx_ok for a mac tx cnf ... it means the device has received the confirmation :slight_smile: