When attempting to use ota_example, I am receiving a ‘failed to join network -4:Join Error’ logged to the serial port.
In the .cpp file, I changed the network id, passphrase, and the sub band to match the .conf file on the mLinux Conduit. Using these same credentials, I am able to join using AT commands and am confident that all information is correct.
I have reduced Tx Power from 30 to 4 (because I am in close proximity during this testing phase to the gateway) but this made no difference.
The following is the output from the at&v command:
Device ID: 00:80:00:00:00:00:eb:37
Default Frequency Band: US915
Current Frequency Band: US915
Frequency Sub Band: 7
Public Network: off
Start Up Mode: COMMAND
Network Address: 00000000
Network ID: 04:c2:17:b9:a2:a9:33:9d
Network ID Passphrase: richmondSFDC
Network Key: 3b.aa.e4.a1.b7.18.da.64.51.4e.6b.18.bf.c9.98.de
Network Key Passphrase: richmondSFDC
Network Session Key: 00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00
Data Session Key: 00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00
Network Join Mode: OTA
Network Join Retries: 2
Preserve Session: off
Join Byte Order: LSB
Join Delay: 5
Join Rx1 DR Offset: 0
Join Rx2 Datarate: DR8 - SF12BW500
Join Rx2 Frequency: 923300000
App Port: 1
Listen Before Talk: off
Link Check Threshold: 5
Link Check Count: 3 packets
Error Correction: 1 bytes
ACK Retries: off
Packet Repeat: 1
Encryption: on
CRC: on
Adaptive Data Rate: on
Command Echo: on
Verbose Response: off
Tx Frequency: 0
Tx Data Rate: DR0 - SF10BW125
Min/Max Tx Data Rate: Min: DR0 - SF10BW125
Max: DR4 - SF8BW500
Tx Power: 30
Min/Max Tx Power: Min: 0
Max: 30
Tx Antenna Gain: 3
Tx Wait: on
Tx Inverted Signal: off
Rx Delay: 1 s
Rx Inverted Signal: on
Rx Output Style: HEXADECIMAL
Debug Baud Rate: 115200
Serial Baud Rate: 115200
Serial Flow Control: off
Serial Clear On Error: on
Wake Mode: INTERVAL
Wake Interval: 10 s
Wake Delay: 100 ms
Wake Timeout: 20 ms
Wake Pin: DI8
Log Level: 4
serial info from ota_example.cpp:
[INFO] Initialize radio…
[INFO] Initialize channels…
[INFO] Initialize datarates…
[INFO] Set radio to Private Mode
[DEBUG] Read file from flash: 256 bytes
[DEBUG] Read file from flash: 1024 bytes
[DEBUG] Read file from flash: 256 bytes
[INFO] Set radio to Private Mode
[INFO] mDot Ready
[INFO] mbed-os library version: 144
[INFO] defaulting Dot configuration
[INFO] Initialize channels…
[INFO] Initialize datarates…
[INFO] changing network name from “” to “richmondSFDC”
[INFO] changing network passphrase from “” to “richmondSFDC”
[INFO] changing frequency sub band from 0 to 7
[INFO] changing link check count from 0 to 3
[INFO] changing link check threshold from 0 to 5
[INFO] saving configuration
[INFO] =====================
[INFO] general configuration
[INFO] =====================
[INFO] version —————— 3.0.0-mbed144
[INFO] device ID/EUI ———— 008000000000eb37
[INFO] default channel plan —– US915
[INFO] current channel plan —– US915
[INFO] frequency sub band ——- 7
[INFO] public network ———– Private LoRaWAN
[INFO] =========================
[INFO] credentials configuration
[INFO] =========================
[INFO] device class ————- A
[INFO] network join mode ——– OTA
[INFO] network name ————- richmondSFDC
[INFO] network phrase ———– richmondSFDC
[INFO] network EUI ————– 04c217b9a2a9339d
[INFO] network KEY ————– 3baae4a1b718da64514e6b18bfc998de
[INFO] ========================
[INFO] communication parameters
[INFO] ========================
[INFO] acks ——————— off, 0 attempts
[INFO] TX datarate ————– DR0
[INFO] TX power —————– 30 dBm
[INFO] antenna gain ————- 3 dBm
[INFO] LBT ———————- off
[INFO] attempt 1 to join network
[INFO] Send join request RxDelay: 5 Rx1Offset: 0 Rx2Freq: 923300000 Rx2Dr: 8
[INFO] Configure radio for TX
[INFO] Configure radio for TX
[INFO] Configure radio for TX
[INFO] Rx Window 1
[INFO] Rx Window 2
[ERROR] Failed to join network
[ERROR] failed to join network -4:Join Error
[INFO] waiting 2 s until next free channel
[INFO] attempt 2 to join network
[INFO] Send join request RxDelay: 5 Rx1Offset: 0 Rx2Freq: 923300000 Rx2Dr: 8
[INFO] Configure radio for TX
[INFO] Configure radio for TX
[INFO] Configure radio for TX
[INFO] Rx Window 1
[INFO] Rx Window 2
[ERROR] Failed to join network
[ERROR] failed to join network -4:Join Error
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