Last modified by Edwin Chen on 2025/01/29 20:30
<
From version < 43.1 >
edited by Mengting Qiu
on 2024/01/23 15:09
To version < 37.2 >
edited by Xiaoling
on 2022/12/16 10:46
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.ting
1 +XWiki.Xiaoling
Content
... ... @@ -11,19 +11,14 @@
11 11  \\**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:**
12 12  
13 13  * End node console to show the Join freuqency and DR. (If possible)
14 -
15 15  * Gateway (from gateway UI) traffic to show the packet got from end node and receive from Server. (If possible)
16 -
17 17  * Gateway traffic (from server UI) to shows the data exchange between gateway and server. (Normaly possible)
18 -
19 19  * End Node traffic (from server UI) to shows end node activity in server. (Normaly possible)
20 -
21 21  * End Node Keys screen shot shows in end node and server. so we can check if the keys are correct. (In most case, we found keys doesn't match, especially APP EUI)
22 22  
23 23  (% style="color:blue" %)**1. End Device Join Screen shot, we can check:**
24 24  
25 25  * If the device is sending join request to server?
26 -
27 27  * What frequency the device is sending?
28 28  
29 29  [[image:image-20220526164956-15.png||height="591" width="1153"]]
... ... @@ -35,7 +35,6 @@
35 35  (% style="color:blue" %)**2. Gateway packet traffic in gateway web or ssh. we can check:**
36 36  
37 37  * If the gateway receive the Join request packet from sensor? (If this fail, check if the gateway and sensor works on the match frequency)
38 -
39 39  * If the gateway gets the Join Accept message from server and transmit it via LoRa?
40 40  
41 41  [[image:image-20220526163608-2.png]]
... ... @@ -47,9 +47,7 @@
47 47  (% style="color:blue" %)**3. Gateway Traffic Page in LoRaWAN Server**
48 48  
49 49  * If the Join Request packet arrive the gateway traffic in server? If not, check the internet connection and gateway LoRaWAN server settings.
50 -
51 51  * 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.
52 -
53 53  * 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.
54 54  
55 55  [[image:image-20220526163633-3.png]]
... ... @@ -214,6 +214,8 @@
214 214  
215 215  * This packet must match the DataRate of RX1(RX1DR) or RX2 (RX2DR). (% style="color:red" %)**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.**
216 216  
209 +
210 +
217 217  == 5.2 See Debug Info ==
218 218  
219 219  
... ... @@ -273,13 +273,13 @@
273 273  )))
274 274  
275 275  (((
276 -* (% style="color:#037691" %)**AT+RX2FQ=869525000**  (%%) **~-~-->**  The RX2 Window frequency
270 +(% style="color:#037691" %)**AT+RX2FQ=869525000**  (%%) **~-~-->**  The RX2 Window frequency
271 +(% style="color:#037691" %)**AT+RX2DR=3**          (%%) **~-~-->**  The RX2 DataRate
272 +(% style="color:#037691" %)**AT+RX1DL=1000**       (%%) ** ~-~-->**  Receive Delay 1
273 +(% style="color:#037691" %)**AT+RX2DL=2000**       (%%) **~-~--> ** Receive Delay 2
277 277  
278 -* (% style="color:#037691" %)**AT+RX2DR=3**          (%%) **~-~-->**  The RX2 DataRate
279 279  
280 -* (% style="color:#037691" %)**AT+RX1DL=1000**       (%%) ** ~-~-->**  Receive Delay 1
281 -
282 -* (% style="color:#037691" %)**AT+RX2DL=2000**       (%%) **~-~--> ** Receive Delay 2
276 +
283 283  )))
284 284  
285 285  (((
... ... @@ -322,13 +322,12 @@
322 322  (% style="color:red" %)**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:**
323 323  
324 324  * End node console to show the transmit freuqency and DR.
325 -
326 326  * Gateway (from gateway UI) traffic to show the packet got from end node and receive from Server.
327 -
328 328  * Gateway traffic (from server UI) to shows the data exchange between gateway and server.
329 -
330 330  * End Node traffic (from server UI) to shows end node activity in server.
331 331  
323 +
324 +
332 332  = 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
333 333  
334 334  
... ... @@ -361,9 +361,7 @@
361 361  (% style="color:blue" %)**1. LHT65 End device configure:**
362 362  
363 363  **Change to ABP Mode:  AT+NJM=0**
364 -
365 365  **Change to fix frequency:  AT+CHS=904900000**
366 -
367 367  **Change to fix DR:  AT+DR=0**
368 368  
369 369  
... ... @@ -435,50 +435,27 @@
435 435  
436 436  * (((
437 437  If a node is registered with multiple servers, it may also cause the "mic mismatch" error.
438 -)))
439 439  
440 -(% class="wikigeneratedid" %)
441 -3）Wrong Regional Parameters version selected
442 - We generally use versions above 1.0.2
443 443  
444 -(% class="wikigeneratedid" %)
445 -[[image:image-20230322163227-1.png]]
431 +
432 +)))
446 446  
447 -(% class="wikigeneratedid" %)
448 -4）We have had cases where it was automatically fixed the next day despite no manual changes, probably a server side issue
449 -
450 -
451 451  = 10. Why i got the payload only with "0x00" or "AA~=~="? =
452 452  
453 453  
454 -(% style="color:blue" %)**Why sensor sends 0x00?**
437 +**Why this happen:**
455 455  
456 -For US915, AU915 or AS923 frequencies, the max payload lenght is 11 bytes for DR0. Some times sensor needs to send MAC command to server, because the payload is 11 bytes, The MAC command + Payload will exceed 11 bytes and LoRaWAN server will ignore the uplink. In this case, Sensor will send two uplinks together: one uplink is the payload without MAC command, another uplink is **0x00 payload + MAC Command.**  For the second uplink, in the server side, it will shows the payload is 0x00. Normally, there are several case this will happen.
439 +For US915, AU915 or AS923 frequencies.It is possible because: .
457 457  
458 -**Possible Case 1**:
441 +When using the frequency mentioned above, the server sometimes adjusts the Data Rate (DR) of the node, because the end node has Adaptive Data Rate (ADR) Enabled.
459 459  
460 -Sensor has ADR=1 enable and sensor need to reply server MAC command (ADR request) while sensor has DR=0.
443 +When the server adjusts end node data rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the end 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 following an additional 00 data packet to handle this MAC command response.
461 461  
462 462  
463 -**Possible Case 2:**
446 +**How to solve:**
464 464  
465 -For the sensor which has Datalog Feature enable, the sensor will send TimeRequest MAC Command to sync the time. This Time Request will be sent once Sensor Join Network and Every 10 days. While they send such command with DR=0, sensor will send this command with 0x00 payload.
448 +Solution: Use the decoder to filter out this 0x00 packet.
466 466  
467 -
468 -(% style="color:blue" %)**How to solve:**
469 -
470 -Solution:
471 -
472 -~1. Use the decoder to filter out this 0x00 packet. (**Recommand**)
473 -
474 -2. Data rate changed from DR3 to DR5, increasing upload byte length
475 -AT+ADR=0
476 -AT+DR=3
477 -
478 -Downlink：
479 -
480 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
481 -
482 482  Some node decoders may not have the filter function, or you need decoders of other servers and formats. Please send an email to [[support@dragino.com>>mailto:support@dragino.com]]
483 483  
484 484  
image-20230322163227-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Bei
Size
... ... @@ -1,1 +1,0 @@
1 -43.1 KB
Content
image-20240123150720-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.ting
Size
... ... @@ -1,1 +1,0 @@
1 -119.9 KB
Content
image-20240123150943-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.ting
Size
... ... @@ -1,1 +1,0 @@
1 -161.5 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0