Lora: Unexpected message type

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  • November 12, 2016 at 1:15 pm #15450
    Shankar Jayagopi
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    When sending a packet after a join, sometimes, i see the follow log on the server and there is no downlink message following this. 

    Nov 12 19:11:21 mtcdt user.info lora-network-server: Parsing 1 rx packets
Nov 12 19:11:21 mtcdt user.info lora-network-server: SeqNo: 00000001 PrevSeqNo: 00000000 Duplicate: no^M
Nov 12 19:11:21 mtcdt user.info lora-network-server: Addr: 00:00:00:04 MIC Check: passed
Nov 12 19:11:21 mtcdt user.info lora-network-server: Packet accepted from Node 00:00:00:04  GW 00:80:00:00:00:00:c4:c9  (127.0.0.1)  Seq# 1  ADR enabled SF12BW125
Nov 12 19:11:21 mtcdt user.info lora-network-server: Schedule TX Time on air: 1165 ms
Nov 12 19:11:22 mtcdt user.warn lora-network-server: Dropping downstream message - Unable parse 'data' as base64
Nov 12 19:11:22 mtcdt user.info lora-network-server: Frame transmitted to 00:00:00:04 via GW (00:80:00:00:00:00:c4:c9 Chan FC1 127.0.0.1:38901)  Seq# 1
Nov 12 19:11:22 mtcdt user.info lora-network-server: Transmit UDP message to Gateway 180 bytes
Nov 12 19:11:23 mtcdt user.info lora-network-server: Parsing 1 rx packets
Nov 12 19:11:23 mtcdt user.warn lora-network-server: LoRa::ReceivedFrame::MessageRejectException :  Unexpected message type
Nov 12 19:11:23 mtcdt user.warn lora-network-server:  Error number 0

    Does anyone have an idea on why such “Unexpected message type” situ happens? the same program works fine other times.

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