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...	...	@@ -205,7 +205,6 @@
205	205	* This packet must match the frequency of the RX1 or RX2 window.
206	206	* 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.**
207	207
208		-
209	209	== 5.2 See Debug Info ==
210	210
211	211
...	...	@@ -263,20 +263,15 @@
263	263	)))
264	264
265	265	(((
	265	+(% style="color:#037691" %)**AT+RX2FQ=869525000**  (%%) **~-~-->**  The RX2 Window frequency
	266	+(% style="color:#037691" %)**AT+RX2DR=3**          (%%) **~-~-->**  The RX2 DataRate
	267	+(% style="color:#037691" %)**AT+RX1DL=1000**       (%%) ** ~-~-->**  Receive Delay 1
	268	+(% style="color:#037691" %)**AT+RX2DL=2000**       (%%) **~-~--> ** Receive Delay 2
	269	+
266	266
267	267	)))
268	268
269	269	(((
270		-(% class="box infomessage" %)
271		-(((
272		-AT+RX2FQ=869525000     ~-~--> The RX2 Window frequency
273		-AT+RX2DR=3      ~-~--> The RX2 DataRate
274		-AT+RX1DL=1000   ~-~--> Receive Delay 1
275		-AT+RX2DL=2000   ~-~--> Receive Delay 2
276		-)))
277		-)))
278		-
279		-(((
280	280	(% style="color:blue" %)**when the device running, we can see below info:**
281	281	)))
282	282
...	...	@@ -308,8 +308,9 @@
308	308	1:0012345678}}}
309	309
310	310
311		-== 5.3 If problem doesn’t solve ==
	305	+== 5.3 If problem doesn't solve ==
312	312
	307	+
313	313	(% 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:**
314	314
315	315	* End node console to show the transmit freuqency and DR.
...	...	@@ -317,6 +317,9 @@
317	317	* Gateway traffic (from server UI) to shows the data exchange between gateway and server.
318	318	* End Node traffic (from server UI) to shows end node activity in server.
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	315	+
	316	+
	317	+
320	320	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
321	321
322	322	(((