Chirpstack doesnt receive gateway messages

Hi everyone,

i hava a issue with the new Chirpstack V4.

I use a Dragino gateway. On this gateway the gateway bridge is running. Everything is configured as described in the manuala. I also made use of the troubleshooting guide but my chirpstack instance shows always that the gateway is never seen.

I checked that my mqtt Broker receives the messages from the gateway. And i definetly see messages there.

But iam actually askig me if the topic is correct. I think the region prefix is missing.
Can anyone help me out?

The Problem was the missing region topic in the mqtt messagt of the Broker