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...	...	@@ -356,22 +356,16 @@
356	356	[[image:https://wiki.dragino.com/images/thumb/e/e8/V3_MQTT4.jpg/600px-V3_MQTT4.jpg||alt="V3 MQTT4.jpg" height="326" width="600"]]
357	357
358	358	(((
359		-(((
360	360	Downlinks can be scheduled by publishing the message to the topic v3/{application id}@{tenant id}/devices/{device id}/down/push.
361	361	)))
362		-)))
363	363
364	364	(((
365		-(((
366	366	Note: Remember that the format of this topic for The Things Stack Open Source deployment would be v3/{application id}/devices/{device id}/down/push.
367	367	)))
368		-)))
369	369
370	370	(((
371		-(((
372	372	Instead of /push, you can also use /replace to replace the downlink queue. Replacing with an empty array clears the downlink queue. Example:
373	373	)))
374		-)))
375	375
376	376	[[image:https://wiki.dragino.com/images/thumb/e/e8/V3_MQTT5.png/600px-V3_MQTT5.png||alt="V3 MQTT5.png" height="289" width="600"]]
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483	483
484	484	**3. Gateway Traffic Page in LoRaWAN Server**
485	485
486		-* (((
487		-If the Join Request packet arrive the gateway traffic in server? If not, check the internet connection and gateway LoRaWAN server settings.
488		-)))
489		-* (((
490		-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.
491		-)))
492		-* (((
493		-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.
494		-)))
	480	+* If the Join Request packet arrive the gateway traffic in server? If not, check the internet connection and gateway LoRaWAN server settings.
	481	+* 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.
	482	+* 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.
495	495
496	496	[[image:https://wiki.dragino.com/images/thumb/d/da/LoRaWAN_Communication_Debug22.png/600px-LoRaWAN_Communication_Debug22.png||height="268" width="600"]]
497	497
...	...	@@ -505,10 +505,8 @@
505	505	**4. Data Page in LoRaWAN server**
506	506
507	507	* (((
508		-(((
509	509	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.
510	510	)))
511		-)))
512	512
513	513	[[image:https://wiki.dragino.com/images/thumb/9/99/LoRaWAN_Communication_Debug4.png/600px-LoRaWAN_Communication_Debug4.png||height="222" width="600"]]
514	514