Last modified by Edwin Chen on 2025/01/29 20:30
<
From version < 30.2 >
edited by Xiaoling
on 2022/05/30 10:57
To version < 27.1 >
edited by Xiaoling
on 2022/05/26 17:01
>
Change comment: Uploaded new attachment "image-20220526170151-19.png", version {1}

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1 1  **~ Contents:**
2 2  
3 +(((
4 +
5 +)))
6 +
3 3  {{toc/}}
4 4  
5 5  
6 -
7 7  = 1. OTAA Join Process Debug =
8 8  
9 9  These pages are useful to check what is wrong on the Join process. Below shows the four steps that we can check the Join Process.
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194 194  * This packet must match the frequency of the RX1 or RX2 window.
195 195  * This packet must match the DataRate of RX1(RX1DR) or RX2 (RX2DR). **This is the common fail point, because different lorawan server might use different RX2DR and they don't info End Node via ADR message so cause the mismatch. If this happen, user need to change the RX2DR to the right value in end node. In OTAA, LoRaWAN Server will send the RX2DR setting in Join Accept message so the end node will auto adjust. but ABP uplink doesn't support this auto change.**
196 196  
197 -
198 -
199 199  == 5.2 See Debug Info ==
200 200  
201 201  (((
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337 337  
338 338  (% class="box infomessage" %)
339 339  (((
340 -**Change to ABP Mode: AT+NJM=0**
341 +Change to ABP Mode: AT+NJM=0
341 341  )))
342 342  
343 343  (% class="box infomessage" %)
344 344  (((
345 -**Change to fix frequency: AT+CHS=904900000**
346 +Change to fix frequency: AT+CHS=904900000
346 346  )))
347 347  
348 348  (% class="box infomessage" %)
349 349  (((
350 -**Change to fix DR: AT+DR=0**
351 +Change to fix DR: AT+DR=0
351 351  )))
352 352  
353 -[[image:image-20220526165525-16.png]]
354 +[[image:https://wiki.dragino.com/images/e/e6/Decrypt_a_LoRaWAN_Packet1.jpg||alt="Decrypt a LoRaWAN Packet1.jpg" height="607" width="558"]]
354 354  
355 -
356 356  2. In LG02 , configure to receive above message
357 357  
358 -[[image:image-20220526165612-17.png]]
358 +[[image:https://wiki.dragino.com/images/c/c3/Decrypt_a_LoRaWAN_Packet2.jpg||alt="Decrypt a LoRaWAN Packet2.jpg" height="337" width="558"]]
359 359  
360 -
361 361  In LG02 console, we can see the hex receive are:
362 362  
363 -[[image:image-20220526171112-21.png]]
362 +[[image:https://wiki.dragino.com/images/f/f1/Decrypt_a_LoRaWAN_Packet3.jpg||alt="Decrypt a LoRaWAN Packet3.jpg" height="179" width="558"]]
364 364  
365 -
366 366  3. Decode the info in web
367 367  
368 368  [[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/]]
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377 377  
378 378  [[https:~~/~~/lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111>>url:https://lorawan-packet-decoder-0ta6puiniaut.runkit.sh/?data=40c1190126800100024926272bf18bbb6341584e27e23245&nwkskey=00000000000000000000000000000111&appskey=00000000000000000000000000000111]]
379 379  
380 -[[image:image-20220526171029-20.png]]
378 +[[image:https://wiki.dragino.com/images/7/77/Decrypt_a_LoRaWAN_Packet4.png||alt="Decrypt a LoRaWAN Packet4.png" height="390" width="558"]]
381 381  
382 382  (((
383 383   The FRMPayload is the device payload.
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388 388  
389 389  Since firmware v1.8, LHT65 will send MAC command to request time, in the case if DR only support max 11 bytes, this MAC command will be bundled to a separate uplink payload with 0x00.
390 390  
391 -
392 392  = 9. Why do I see a "MIC Mismatch" error message from the server? =
393 393  
394 394  (((
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441 441  
442 442  = 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
443 443  
444 -(((
445 445  It is possible the keys is erased during upgrading of firmware. and the console output shows below after AT+CFG
446 -)))
447 447  
448 -(((
449 449  AT+APPKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
450 -)))
451 451  
452 -(((
453 453  AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
454 -)))
455 455  
456 -(((
457 457  AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
458 -)))
459 459  
460 -(((
461 461  AT+APPEUI=00 00 00 00 00 00 00 00
462 -)))
463 463  
464 -(((
465 -
466 -)))
467 467  
468 -(((
469 469  You can get the keys from the box sticker or send mail to Dragino Support to check keys with the provided SN number.
470 -)))
471 471  
472 -(((
473 473  You can rewrites the keys by running commands in AT Console
474 -)))
475 475  
476 -(((
477 -**For example：**
478 -)))
456 +For example：
479 479  
480 -(((
481 481  AT+APPKEY=85 41 47 20 45 58 28 14 16 82 A0 F0 80 0D DD EE
482 -)))
483 483  
484 -(((
485 485  AT+NWKSKEY=AA CC B0 20 30 45 37 32 14 1E 14 93 E2 3B 20 11
486 -)))
487 487  
488 -(((
489 489  AT+APPSKEY=11 23 02 20 30 20 30 60 80 20 20 30 30 20 10 10
490 -)))
491 491  
492 -(((
493 493  AT+APPEUI=2C 45 47 E3 24 12 23 24
494 -)))
495 495  
496 -(((
497 497  (Any combination of 16 bit codes can be used）
498 -)))
499 499  
500 500  
501 -(% class="wikigeneratedid" %)
502 -
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