[Seeeduino LoRaWAN] Length Error 11 on sending data

Devices
1

I am seeing this error continuously when trying to send data to lora gateway from seeeduino device.
Mode is OTAA .
DR is 3.
US915HYBRID
these are the configurations.

When trying to join network by OTAA join, happens without any issues.
But while sending data to lora gateway, shows
“+CMSG: Length error 11”

Got struck in this issue for days. Thanks in advance for helping

2

Are you referring to this board? http://wiki.seeedstudio.com/Seeeduino_LoRAWAN/

3

yeah. This board exactly. v1.0 to be exact

4

Thanks for clarifying. I do not have an answer to your question, but I have renamed the topic to make it clearer :slight_smile: Hopefully somebody else has the same board and can help you out.

1 Like
5

Hi,

…if it can help…:

https://wiki.ai-thinker.com/media/rhf-ps01509_lorawan_class_ac_at_command_specification-_v4.4.pdf

page 17:

7.Current payload length is too long to send. +MSG: Length errorNNote: N could be 0 or none zero value, if it returns 0, it means there is a pending Uplink MAC Command must be sent through Port 0. User need send a dummy MSG command "AT+MSG"to flush uplink MAC command.

good luck.

1 Like
6

Tried “AT+MSG” command, didnt work still error remains.
Is there any command which can flush all pending payload in all port?

7

Found it.
At setup of device contains devicedefault().
When using devicedefault() function error remains.
without using it works.

+CMSG: Start
+CMSG: Wait ACK
+CMSG: ACK Received
+CMSG: RXWIN1, RSSI -15, SNR 6.0
+CMSG: Done