Min value of Margin is -32


#1

Dear sirs,

Unfortunately, I didn’t find an answer on the forum.

I faced with the next error:

When I try send MQTT-request to my lora-device I recieve ack-answer but didn’t recieve /rx answer.

I checked logs of lora nw, lora gw and lora app servers and find related error:

Feb 08 17:33:44 vega-ns loraserver[1129]: time=“2019-02-08T17:33:44+03:00” level=info msg=“device-queue item updated” dev_eui=323632316f377b12 emit_at_time_since_gps_epoch="" f_cnt=347 is_pending=true timeout_after=“2019-02-08 17:34:44.429263069 +0300 MSK m=+6670.382202494”
Feb 08 17:33:44 vega-ns loraserver[1129]: time=“2019-02-08T17:33:44+03:00” level=info msg=“requesting device-status” dev_eui=323632316f377b12
Feb 08 17:33:44 vega-ns loraserver[1129]: time=“2019-02-08T17:33:44+03:00” level=info msg=“pending mac-command block set” cid=DevStatusReq commands=1 dev_eui=323632316f377b12
Feb 08 17:33:44 vega-ns loraserver[1129]: time=“2019-02-08T17:33:44+03:00” level=info msg=“gateway/mqtt: publishing downlink frame” qos=0 topic=gateway/b827ebfffe549227/tx
Feb 08 17:33:44 vega-ns loraserver[1129]: time=“2019-02-08T17:33:44+03:00” level=info msg=“device-session saved” dev_addr=fe2b0d88 dev_eui=323632316f377b12
Feb 08 17:33:44 vega-ns loraserver[1129]: time=“2019-02-08T17:33:44+03:00” level=info msg=“backend/gateway: downlink tx acknowledgement received” gateway_id=b827ebfffe549227
Feb 08 17:33:47 vega-ns loraserver[1129]: time=“2019-02-08T17:33:47+03:00” level=info msg=“gateway/mqtt: uplink frame received”
Feb 08 17:33:47 vega-ns loraserver[1129]: time=“2019-02-08T17:33:47+03:00” level=error msg=“processing uplink frame error” data_base64=gIgNK/6mzwEGAPIGAOwC/+MEkbx//mL1WnIY error="create uplink frame-log error: marshal phypayload error: lorawan: min value of Margin is -32"

Tell me please what reasons can be?

Thank you!


#2

I’m not sure, this might be a bug. Could you please create an issue by filling in this form? https://github.com/brocaar/loraserver/issues/new.


#3