Message is not arriving at the device

End Devices (Nodes) Dragino
1

Dear All,

I’m new to TTN and the whole topic. Sorry for any missunderstanding/missinterpretation.

Setup:
Device Dragino Shield for Arduino
Gateway TTN Indoor gateway

I use the example Sketch from the Dragino webpage for LMIC and Arduino. Seems to work:

Packet queued
868300000
377181852: 10
EV_TXCOMPLETE (includes waiting for RX windows)

I see this line every 10 sec. I check the TTN Gateway Console Traffic I see every 10 sec a new line. Detail below.

{
“gw_id”: “eui-58a0cbfffe8017b0”,
“payload”: “QEETASaA+QEB+7CyVCKoMugHHfU=”,
“f_cnt”: 505,
“lora”: {
“spreading_factor”: 7,
“bandwidth”: 125,
“air_time”: 56576000
},
“coding_rate”: “4/5”,
“timestamp”: “2019-10-11T14:18:35.898Z”,
“rssi”: -37,
“snr”: 9,
“dev_addr”: “26011341”,
“frequency”: 868300000
}

But If I check the device Data I never see anything arriving. The data tab is always empty.

I checked the DEV Address and found it correct…

Device Address 26011341

For me it looks OK. The device can send through the Gateway, I used ABP method, Network key and Appkey is set properly.

Do you have an idea what to check and how?

Thank you so much.
Stephan

2

The TTN back-end uses the App Session Key and Network Session Key when using ABP. These values need to match between TTN and the device for TTN to be able to validate the packet. Check if the byte order of the keys is correct as that is the common error when the gateway receives data and the application does not show any data.