Ability to reset fCnt On Device

ChirpStack Application Server
1

Hi,

We need to be able to reset the fCnt on a device. We would hope to do this with the fCnt variable in the downlink API endpoint, however this seems to have no affect.

Cheers,
Tom

2

What you would like to do is probably not part of the LoRaWAN specification meaning you must implement this yourself on the application-layer. Note that LoRaWAN 1.1 does provide some meganism to force a device to rejoin (causing the fCnt to reset, but also the session-keys and radio parameters).

3

I am not sure this is something we could on the application layer without the API to do so, correct me if I am wrong however.