OTAA Failed – Check Keys error for US915 Multitech Conduit AEP Model

[ankush.kapile@einfochips.com]

Hi All,

I am observing issue with SX1262 radio module (connected on nucleo L476RG board). While connecting node with US915 frequency to multitech gateway (US915 Frequency compliant) in OTAA mode RX1 slot open with random frequency. Which leads to failure in connection after retrying 12 nb trials with message “OTAA Failed – Check Keys”. I am using Mbed lorawan example with SX1262 RF library.
I am able to connect radio module in ABP mode successfully.
Please let me know if anything apart from normal OTAA parameters required to be configured in mbed_app.jason file.
OR is there any other setting required in application side or gateway side ?

Below is the captured log from console output –

FREQUENCY US915

../lorawan/LoRaWANStack.cpp::initialize_mac_layer(117)
Initializing MAC layer
../lorawan/LoRaWANStack.cpp::state_controller(1089)
Mbed LoRaWANStack initialized

CONFIRMED message retries : 3

Adaptive data rate (ADR) – Enabled

../lorawan/LoRaWANStack.cpp::handle_connect(896)
Initiating OTAA
../lorawan/LoRaWANStack.cpp::state_controller(1093)
../lorawan/LoRaWANStack.cpp::process_joining_state(1202)
Sending Join Request …
../lorawan/lorastack/mac/LoRaMac.cpp::prepare_frame(1737)
Frame preparedto send at port 0
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1169)
TX: Channel=65, TX DR=4, RX1 DR=13
RADIO SX1262

Connection – In Progress …

../lorawan/LoRaWANStack.cpp::process_transmission(579)
Transmission completed
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx1_window(925)
RX1 slot open, Freq = 1702132066
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx2_window(958)
RX2 slot open, Freq = 923300000
../lorawan/LoRaWANStack.cpp::state_controller(1097)
../lorawan/lorastack/mac/LoRaMac.cpp::prepare_frame(1737)
Frame prepared to send at port 0
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1169)
TX: Channel=10, TX DR=0, RX1 DR=10
RADIO SX1262

../lorawan/LoRaWANStack.cpp::process_transmission(579)
Transmission completed
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx1_window(925)
RX1 slot open, Freq = 904300000
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx2_window(958)
RX2 slot open, Freq = 923300000
../lorawan/LoRaWANStack.cpp::state_controller(1097)
../lorawan/lorastack/mac/LoRaMac.cpp::prepare_frame(1737)
Frame prepared to send at port 0
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1156)
DC enforced: Transmitting in 31320 ms
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1169)
TX: Channel=64, TX DR=4, RX1 DR=13
RADIO SX1262

../lorawan/LoRaWANStack.cpp::process_transmission(579)
Transmission completed
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx1_window(925)
RX1 slot open, Freq = 903000000
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx2_window(958)
RX2 slot open, Freq = 923300000
../lorawan/LoRaWANStack.cpp::state_controller(1097)
../lorawan/lorastack/mac/LoRaMac.cpp::prepare_frame(1737)
Frame prepared to send at port 0
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1169)
TX: Channel=46, TX DR=0, RX1 DR=10
RADIO SX1262

../lorawan/LoRaWANStack.cpp::process_transmission(579)
Transmission completed
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx1_window(925)
RX1 slot open, Freq = 911500000
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx2_window(958)
RX2 slot open, Freq = 923300000
../lorawan/LoRaWANStack.cpp::state_controller(1097)
../lorawan/lorastack/mac/LoRaMac.cpp::prepare_frame(1737)
Frame prepared to send at port 0
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1156)
DC enforced: Transmitting in D1303 ms
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1169)
TX: Channel=68, TX DR=4, RX1 DR=13
RADIO SX1262

../lorawan/LoRaWANStack.cpp::process_transmission(579)
Transmission completed
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx1_window(925)
RX1 slot open, Freq = 2717766526
../lorawan/lorastack/mac/LoRaMac.cpp::open_rx2_window(958)
RX2 slot open, Freq = 923300000
../lorawan/LoRaWANStack.cpp::state_controller(1097)
../lorawan/lorastack/mac/LoRaMac.cpp::prepare_frame(1737)
Frame prepared to send at port 0
../lorawan/lorastack/mac/LoRaMac.cpp::schedule_tx(1169)
TX: Channel=13, TX DR=0, RX1 DR=10

[Jason Reiss]

See troubleshooting guide for info from the gateway.
The UI will show any tx’d or rx’d packets on the packets page. Also successful or unsuccessful joins.

http://www.multitech.net/developer/search_gcse/?q=Troubleshooting&sa=&cx=017743692881740435897%3Ao9y1uvfq5cw&ie=UTF-8

Some code stacks take keys or eui values in LSB rather than MSB seen in the GUI and logs of AEP.

• This reply was modified 4 years, 8 months ago by Jason Reiss.

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