<
From version < 29.2 >
edited by Xiaoling
on 2022/05/26 17:11
To version < 32.2 >
edited by Xiaoling
on 2022/07/13 14:44
>
Change comment: There is no comment for this version

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1 -**~ Contents:**
1 +**~ Table of Contents:**
2 2  
3 -(((
4 -
5 -)))
6 -
7 7  {{toc/}}
8 8  
9 9  
6 +
10 10  = 1. OTAA Join Process Debug =
11 11  
12 12  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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185 185  Depends on Class A or Class C, the receive windows will be a little difference,
186 186  )))
187 187  
188 -[[image:image-20220526164547-11.png]]
185 +[[image:image-20220531161828-1.png]]
189 189  
190 190  receive windows for Class A and Class C
191 191  
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339 339  (% class="box infomessage" %)
340 340  (((
341 341  **Change to ABP Mode: AT+NJM=0**
342 -)))
343 -
344 -(% class="box infomessage" %)
345 -(((
346 346  **Change to fix frequency: AT+CHS=904900000**
347 -)))
348 -
349 -(% class="box infomessage" %)
350 -(((
351 351  **Change to fix DR: AT+DR=0**
352 352  )))
353 353  
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389 389  
390 390  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.
391 391  
381 +
392 392  = 9. Why do I see a "MIC Mismatch" error message from the server? =
393 393  
394 394  (((
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435 435  * (((
436 436  Some node decoders may not have filtering function, or you need decoders of other servers and formats. Please send an email to [[david.huang@dragino.cc>>mailto:david.huang@dragino.cc]]
437 437  
438 -
439 439  
440 440  )))
441 441  
442 442  = 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
443 443  
433 +(((
444 444  It is possible the keys is erased during upgrading of firmware. and the console output shows below after AT+CFG
435 +)))
445 445  
437 +(((
446 446  AT+APPKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
439 +)))
447 447  
441 +(((
448 448  AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
443 +)))
449 449  
445 +(((
450 450  AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
447 +)))
451 451  
449 +(((
452 452  AT+APPEUI=00 00 00 00 00 00 00 00
451 +)))
453 453  
453 +(((
454 +
455 +)))
454 454  
457 +(((
455 455  You can get the keys from the box sticker or send mail to Dragino Support to check keys with the provided SN number.
459 +)))
456 456  
461 +(((
457 457  You can rewrites the keys by running commands in AT Console
463 +)))
458 458  
459 -For example:
465 +(((
466 +**For example:**
467 +)))
460 460  
469 +(((
461 461  AT+APPKEY=85 41 47 20 45 58 28 14 16 82 A0 F0 80 0D DD EE
471 +)))
462 462  
473 +(((
463 463  AT+NWKSKEY=AA CC B0 20 30 45 37 32 14 1E 14 93 E2 3B 20 11
475 +)))
464 464  
477 +(((
465 465  AT+APPSKEY=11 23 02 20 30 20 30 60 80 20 20 30 30 20 10 10
479 +)))
466 466  
481 +(((
467 467  AT+APPEUI=2C 45 47 E3 24 12 23 24
483 +)))
468 468  
485 +(((
469 469  (Any combination of 16 bit codes can be used)
470 470  
471 471  
489 += 12. I set my device is LoRaWAN Class C mode, why i still see Class A after boot? =
490 +)))
491 +
492 +
493 +Class C only refers to status after OTAA Join successfully. The OTAA Join Process will use Class A mode.
494 +
495 +
496 +
497 +(% class="wikigeneratedid" %)
498 +
image-20220531161828-1.png
Author
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1 +XWiki.Xiaoling
Size
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1 +98.6 KB
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