Pico gateway doesn't work

hello,

i use a pico gateway néméus and with this one with my configuration, i have this log:

chirpstack-network-server[686]: time=“2020-05-20T08:43:43+02:00” level=error msg=“finished unary call with code Unknown” ctx_id=a33b4e38-5edd-42a6-a407-f061f88b9a5b error=“rpc error: code = Unknown desc = lorawan/band: invalid data-rate” grpc.code=Unknown grpc.method=SendProprietaryPayload grpc.service=ns.NetworkServerService grpc.start_time=“2020-05-20T08:43:43+02:00” grpc.time_ms=0.377 peer.address=“127.0.0.1:44446” span.kind=server system=grpc

mai 20 08:47:51 btssn-VirtualBox chirpstack-application-server[701]: time=“2020-05-20T08:47:51+02:00” 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=a8edae23-9115-4383-92d7-987f665ce2ec grpc.duration=1.499259ms grpc.method=SendProprietaryPayload grpc.service=ns.NetworkServerService span.kind=client system=grpc
mai 20 08:47:51 btssn-VirtualBox chirpstack-application-server[701]: time=“2020-05-20T08:47:51+02:00” level=error msg=“send gateway ping error: send ping error: send proprietary payload error: rpc error: code = Unknown desc = lorawan/band: invalid data-rate”

Pico gateway Néméus work in Chirpstack?
in Device Profile i use “Device supports otaa”
I check Device Support Class-B et C

thank you in advance.

Michel

use the search, there are already topics covering this error:
https://forum.loraserver.io/search?q=invalid%20data-rate

i change the TX data-rate 10 to 1.
i don’t see error in log, but the device indicate mac join failed

mai 20 11:21:16 btssn-VirtualBox chirpstack-application-server[701]: time=“2020-05-20T11:21:16+02:00” level=info msg=“finished unary call with code OK” ctx_id=dce35acc-5bd5-45ef-b55a-17cdf4c79d6e grpc.code=OK grpc.method=GetLastPing grpc.service=api.GatewayService grpc.start_time=“2020-05-20T11:21:16+02:00” grpc.time_ms=3.095 peer.address=“127.0.0.1:55474” span.kind=server system=grpc
mai 20 11:21:22 btssn-VirtualBox chirpstack-application-server[701]: time=“2020-05-20T11:21:22+02:00” level=info msg=“finished unary call with code OK” ctx_id=d0033a42-8923-4089-802f-e4d7c4283027 grpc.code=OK grpc.method=GetStats grpc.service=api.GatewayService grpc.start_time=“2020-05-20T11:21:22+02:00” grpc.time_ms=1.867 peer.address=“127.0.0.1:55474” span.kind=server system=grpc

mai 20 11:21:16 btssn-VirtualBox chirpstack-network-server[4394]: time=“2020-05-20T11:21:16+02:00” level=info msg=“finished streaming call with code OK” grpc.code=OK grpc.method=StreamFrameLogsForGateway grpc.service=ns.NetworkServerService grpc.start_time=“2020-05-20T11:20:59+02:00” grpc.time_ms=17380.969 peer.address=“127.0.0.1:44786” span.kind=server system=grpc