I have seen a number of (older) posts here and in the RAK forums that talk about incompatibilities between Chirpstack v4 and the RAK7258 gateway. Is this still an issue or has someone here managed to get that combination working?
I am currently running my RAK7258 as a TTN Basics Station but would like to switch to Chirpstack as I would like to experiment with Class C.
I have not tried this, but it might be that the firmware did or does not support the ChirpStack v4 format. However, you can always use the UDP packet-forwarder which works with both v3 and v4 (icm. with the ChirpStack MQTT Forwarder or Gateway Bridge).