Downlink and Uplink frame-Counter Problem

1

Hello;

I use LoRaServer version 2.1. I found a problem when Downlink or Uplink up to 65534. The application is stop. I will reset downlink and Uplink to zero set. It will come back to working. I would like to know how should I do to fix it.

2-4-2019%2011-20-04%20AM
2-4-2019 11-20-04 AM.png1699×795 133 KB

Thank you.

2

Check yours end devices, the FCnt is 32 bits, but in some device implementations, the FCnt is only 16 bits - remember that the MIC is calculated using a 32 bits FCnt.

3

Hello , could you help me to receive some downlink data is use IC880A gateway and using RFM96 for node Arduino

4

Hi Anh_Quan_Tong;

Sorry I don't use IC880A gateway.

Thank you,
Best regards

5

I´m facing the same problem. I´m using a RN2903, when it runs continuoslly it works fine when exceed the 65535 downlink frames, but if the frame counter is greater than 65535 and the RN2903 restart, it can´t get any downlink confirmation.

Have you solved this problem?

6

Supposedly the 1.0.5 firmware fixes this. There may be other issues with it, however. Search the forum for ‘RN2903’ and/or ‘RN2483’