Last modified by Edwin Chen on 2025/01/29 20:30
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From version < 4.6 >
edited by Xiaoling
on 2022/05/11 14:52
To version < 14.2 >
edited by Xiaoling
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1 1  **~ Contents:**
2 2  
3 +(((
4 +
5 +)))
6 +
3 3  {{toc/}}
4 4  
5 5  
... ... @@ -19,7 +19,7 @@
19 19  * If the device is sending join request to server?
20 20  * What frequency the device is sending?
21 21  
22 -[[image:https://wiki.dragino.com/images/thumb/0/0f/OTAA_Join-1.jpg/600px-OTAA_Join-1.jpg||height="316" width="600"]]
26 +[[image:image-20220526163523-1.png]]
23 23  
24 24  Console Output from End device to see the transmit frequency
25 25  
... ... @@ -29,7 +29,7 @@
29 29  * If the gateway receive the Join request packet from sensor? (If this fail, check if the gateway and sensor works on the match frequency)
30 30  * If the gateway gets the Join Accept message from server and transmit it via LoRa?
31 31  
32 -[[image:https://wiki.dragino.com/images/thumb/1/1c/OTAA_Join-2.png/600px-OTAA_Join-2.png||height="325" width="600"]]
36 +[[image:image-20220526163608-2.png]]
33 33  
34 34  Console Output from Gateway to see packets between end node and server.
35 35  
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40 40  * If the server send back a Join Accept for the Join Request? if not, check if the keys from the device match the keys you put in the server, or try to choose a different server route for this end device.
41 41  * If the Join Accept message are in correct frequency? If you set the server to use US915 band, and your end node and gateway is EU868, you will see the Join Accept message are in US915 band so no possible to Join success.
42 42  
43 -[[image:https://wiki.dragino.com/images/thumb/5/5c/OTAA_Join-3.png/600px-OTAA_Join-3.png||height="301" width="600"]]
47 +[[image:image-20220526163633-3.png]]
44 44  
45 45  The Traffic for the End node in the server, use TTN as example
46 46  
... ... @@ -49,11 +49,11 @@
49 49  
50 50  * If this data page shows the Join Request message from the end node? If not, most properly you have wrong settings in the keys. Keys in the server doesn't match the keys in End Node.
51 51  
52 -[[image:https://wiki.dragino.com/images/thumb/e/ec/OTAA_Join-4.png/600px-OTAA_Join-4.png||height="181" width="600"]]
56 +[[image:image-20220526163704-4.png]]
53 53  
54 54  The data for the end device set in server
55 55  
56 -[[image:https://wiki.dragino.com/images/thumb/b/b1/OTAA_Join-5.png/600px-OTAA_Join-5.png||height="166" width="600"]]
60 +[[image:image-20220526163732-5.png]]
57 57  
58 58  Check if OTAA Keys match the keys in device
59 59  
... ... @@ -94,11 +94,11 @@
94 94  Here are the freuqency tables for these bands as reference:
95 95  )))
96 96  
97 -[[image:https://wiki.dragino.com/images/thumb/3/3f/US915_FRE_BAND-1.png/600px-US915_FRE_BAND-1.png||height="170" width="600"]]
101 +[[image:image-20220526163801-6.png]]
98 98  
99 99  US915 Channels
100 100  
101 -[[image:https://wiki.dragino.com/images/thumb/8/8a/AU915_FRE_BAND-1.png/600px-AU915_FRE_BAND-1.png||height="167" width="600"]]
105 +[[image:https://wiki.dragino.com/images/8/8a/AU915_FRE_BAND-1.png]]
102 102  
103 103  AU915 Channels
104 104  
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244 244  **For End Node**
245 245  )))
246 246  
247 -we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
248 -
249 -(% class="box infomessage" %)
250 250  (((
251 - AT+RX2FQ=869525000 ~-~--> The RX2 Window frequency
252 +we can use AT Command (AT+CFG) to check the RX1 configure and RX2 configure. as below:
252 252  )))
253 253  
254 -(% class="box infomessage" %)
255 255  (((
256 - AT+RX2DR=3 ~-~--> The RX2 DataRate
256 +
257 257  )))
258 258  
259 +(((
259 259  (% class="box infomessage" %)
260 260  (((
261 - AT+RX1DL=1000 ~-~--> Receive Delay 1
262 +AT+RX2FQ=869525000     ~-~--> The RX2 Window frequency
263 +AT+RX2DR=3      ~-~--> The RX2 DataRate
264 +AT+RX1DL=1000   ~-~--> Receive Delay 1
265 +AT+RX2DL=2000   ~-~--> Receive Delay 2
262 262  )))
267 +)))
263 263  
264 -(% class="box infomessage" %)
265 265  (((
266 - AT+RX2DL=2000 ~-~--> Receive Delay 2
270 +**when the device running, we can see below info:**
267 267  )))
268 268  
269 -**when the device running, we can see below info:**
273 +{{{ [12502]***** UpLinkCounter= 0 *****
274 + [12503]TX on freq 868500000 Hz at DR 0
275 + [13992]txDone
276 + [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
277 + [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
278 + [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
279 + [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
270 270  
271 271  (((
272 272  
273 273  )))
274 274  
275 -{{{ [12502]***** UpLinkCounter= 0 *****
276 - [12503]TX on freq 868500000 Hz at DR 0
277 - [13992]txDone
278 - [15022]RX on freq 868500000 Hz at DR 0 --> RX1 window open at frequency: 868500000, DR0, after 15022-13992= 1030ms of txdone
279 - [15222]rxTimeOut --> no packet arrive in RX1 window. (duration: 200ms)
280 - [15987]RX on freq 869525000 Hz at DR 3 --> RX2 window open at frequency: 869525000, DR3, after 15987-13992= 1995ms of txdone
281 - [16027]rxTimeOut --> no packet arrive in RX2 window. (duration: 40 ms)}}}
282 -
283 283  (((
284 -
286 +**Another message:**
285 285  )))
286 286  
287 -**Another message:**
289 +{{{ [12502]***** UpLinkCounter= 0 *****
290 + [12503]TX on freq 868100000 Hz at DR 0
291 + [13992]txDone
292 + [15022]RX on freq 868100000 Hz at DR 0
293 + [15222]rxTimeOut
294 + [15987]RX on freq 869525000 Hz at DR 3
295 + [16185]rxDone --> We have got the downstream packet.
296 + Rssi= -64
297 + Receive data
298 + 1:0012345678}}}
288 288  
289 -{{{
290 - [12502]***** UpLinkCounter= 0 *****
291 - [12503]TX on freq 868100000 Hz at DR 0
292 - [13992]txDone
293 - [15022]RX on freq 868100000 Hz at DR 0
294 - [15222]rxTimeOut
295 - [15987]RX on freq 869525000 Hz at DR 3
296 - [16185]rxDone --> We have got the downstream packet.
297 - Rssi= -64
298 - Receive data
299 - 1:0012345678}}}
300 -
301 301  == 5.3 If problem doesn’t solve ==
302 302  
303 303  **If user has checked below steps and still can't solve the problem, please send us (support @ dragino.com) the sceenshots for each step to check. They include:**
... ... @@ -321,9 +321,7 @@
321 321  So if the LoRaWAN server is an AS923 server which ask the gateway to transmit at 923.2Mhz frequency, but the gateway is IN868 frequency band (support 865~~867Mhz to transmit). In the gateway log it will show something like below:
322 322  )))
323 323  
324 -(((
325 -Sat Nov 21 08:04:17 2020 daemon.info lora_pkt_fwd[1680]: ERROR~~ Packet REJECTED, unsupported frequency - 923200000 (min:865000000,max:867000000)
326 -)))
323 +{{{Sat Nov 21 08:04:17 2020 daemon.info lora_pkt_fwd[1680]: ERROR~ Packet REJECTED, unsupported frequency - 923200000 (min:865000000,max:867000000)}}}
327 327  
328 328  (((
329 329  
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379 379  
380 380  [[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 -The FRMPayload is the device payload.
379 +(((
380 + The FRMPayload is the device payload.
381 +)))
383 383  
384 384  
385 385  = 8. Why i see uplink 0x00 periodcally on the LHT65 v1.8 firmware =
... ... @@ -388,32 +388,83 @@
388 388  
389 389  = 9. Why do I see a "MIC Mismatch" error message from the server? =
390 390  
390 +(((
391 391  1)If the user receives a "MIC Mismatch" message after registering the node on the server.
392 +)))
392 392  
394 +(((
393 393  It is likely that the user filled in the wrong APPKEY when registering the node. Many users fill in "APPSKEY".
396 +)))
394 394  
395 -* Please note the distinction between "APPKEY" and "APPSKEY".
398 +* (((
399 +Please note the distinction between "APPKEY" and "APPSKEY".
400 +)))
396 396  
402 +(((
397 397  2）If the node works on the server for a period of time, the device stops working and receives a "MIC Mismatch" message.
404 +)))
398 398  
406 +(((
399 399  The user needs a USB-TTL adapter to connect the serial port to modify the node APPKEY.
408 +)))
400 400  
401 -* If a node is registered with multiple servers, it may also cause the "mic mismatch" error.
410 +* (((
411 +If a node is registered with multiple servers, it may also cause the "mic mismatch" error.
402 402  
413 +
414 +)))
415 +
403 403  = 10. Why i got the payload only with "0x00" or "AA~=~="? =
404 404  
405 405  * If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
406 406  
420 +(((
407 407  When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
422 +)))
408 408  
409 -When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node,
424 +(((
425 +When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the node,and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,so it will send a normal uplink packet, and an additional 00 data packet.
426 +)))
410 410  
411 -and the node will reply to the server after receiving the ADR packet, but the number of payload bytes exceeds the limit,
428 +* (((
429 +Solution: Use the decoder to filter out this 00 packet.
430 +)))
431 +* (((
432 +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]]
412 412  
413 -so it will send a normal uplink packet, and an additional 00 data packet.
414 414  
415 -* Solution: Use the decoder to filter out this 00 packet.
416 -* 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
435 +
436 +)))
417 417  
418 -(% class="wikigeneratedid" id="H" %)
438 += 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
439 +
440 +It is possible the keys is erased during upgrading of firmware. and the console output shows below after AT+CFG
441 +
442 +AT+APPKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
443 +
444 +AT+NWKSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
445 +
446 +AT+APPSKEY=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
447 +
448 +AT+APPEUI=00 00 00 00 00 00 00 00
449 +
450 +
451 +You can get the keys from the box sticker or send mail to Dragino Support to check keys with the provided SN number.
452 +
453 +You can rewrites the keys by running commands in AT Console
454 +
455 +For example：
456 +
457 +AT+APPKEY=85 41 47 20 45 58 28 14 16 82 A0 F0 80 0D DD EE
458 +
459 +AT+NWKSKEY=AA CC B0 20 30 45 37 32 14 1E 14 93 E2 3B 20 11
460 +
461 +AT+APPSKEY=11 23 02 20 30 20 30 60 80 20 20 30 30 20 10 10
462 +
463 +AT+APPEUI=2C 45 47 E3 24 12 23 24
464 +
465 +(Any combination of 16 bit codes can be used）
466 +
467 +
468 +(% class="wikigeneratedid" %)
419 419  
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