Continuing the discussion from [Loraserver on AWS](https://forum.chirpstack.io/t/loraserver-on-aws/788/6)

Continuing the discussion from Loraserver on AWS:

Hi ! too
I correctly installed chirpstackserver and chirpstack-app- on a small Linux machine.

I have now installed everything again on a remote Amazon (AWS) machine. I followed the same steps and everything went well,

but I also can’t transmit any gateway lore packets (uplink and
downlink).

@Silvano_Pisoni How did you solve it?

Dec 19 10:47:05 ip-172-31-32-7 chirpstack-application-server[25275]: time=“2019-12-19T10:47:05Z” level=error msg=“finished client unary call” ctx_id="" error=“rpc error: code = Unknown desc = lorawan/band: invalid data-rate” grpc.code=Unknown grpc.ctx_id=1803b463-d530-46a5-85ea-5da9a121c9d5 grpc.duration=“404.792µs” grpc.method=SendProprietaryPayload grpc.service=ns.NetworkServerService span.kind=client system=grpc