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...	...	@@ -102,11 +102,11 @@
102	102
103	103	US915 Channels
104	104
105		-[[image:https://wiki.dragino.com/images/8/8a/AU915_FRE_BAND-1.png]]
	105	+[[image:image-20220526163926-7.png]]
106	106
107	107	AU915 Channels
108	108
109		-[[image:https://wiki.dragino.com/images/thumb/3/3a/CN470_FRE_BAND-1.png/600px-CN470_FRE_BAND-1.png||height="205" width="600"]]
	109	+[[image:image-20220526163941-8.png]]
110	110
111	111	(((
112	112	CN470 Channels
...	...	@@ -116,7 +116,7 @@
116	116	If we look at the [[TTN network server frequency plan>>url:https://www.thethingsnetwork.org/docs/lorawan/frequency-plans.html]], we can see the US915 frequency band use the channel 8~~15.So the End Node must work at the same frequency in US915 8~~15 channels for TTN server.
117	117	)))
118	118
119		-[[image:https://wiki.dragino.com/images/thumb/9/9a/US915_FRE_BAND-2.png/600px-US915_FRE_BAND-2.png||height="288" width="600"]]
	119	+[[image:image-20220526164052-9.png]]
120	120
121	121	(((
122	122	TTN FREQUENCY PLAN
...	...	@@ -170,7 +170,7 @@
170	170	To solve this, disable the Frame Counter Check will solve this issue , or reset the frame counter in the device page.
171	171	)))
172	172
173		-[[~[~[image:https://wiki.dragino.com/images/thumb/1/19/ABP_Issue-1.jpg/600px-ABP_Issue-1.jpg~|~|height="340" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:ABP_Issue-1.jpg]]
	173	+[[image:image-20220526164508-10.png]]
174	174
175	175	Disable Frame Counter Check in ABP Mode
176	176
...	...	@@ -185,7 +185,7 @@
185	185	Depends on Class A or Class C, the receive windows will be a little difference,
186	186	)))
187	187
188		-[[image:https://wiki.dragino.com/images/thumb/1/1a/Downstream_LoRaWAN-1.png/600px-Downstream_LoRaWAN-1.png||height="590" width="600"]]
	188	+[[image:image-20220526164547-11.png]]
189	189
190	190	receive windows for Class A and Class C
191	191
...	...	@@ -197,6 +197,7 @@
197	197	* This packet must match the frequency of the RX1 or RX2 window.
198	198	* This packet must match the DataRate of RX1(RX1DR) or RX2 (RX2DR). **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.**
199	199
	200	+
200	200	== 5.2 See Debug Info ==
201	201
202	202	(((
...	...	@@ -211,7 +211,7 @@
211	211	Configure a downstream to the end device
212	212	)))
213	213
214		-[[image:https://wiki.dragino.com/images/thumb/8/82/Downstream_debug_1.png/600px-Downstream_debug_1.png||height="217" width="600"]]
	215	+[[image:image-20220526164623-12.png]]
215	215
216	216	(((
217	217	Set a downstream in TTN and see it is sent
...	...	@@ -222,7 +222,7 @@
222	222	This downstream info will then pass to the gateway downstream list. and include the DR which is used (SF9BW125) in EU868 is DR3
223	223	)))
224	224
225		-[[image:https://wiki.dragino.com/images/thumb/d/dc/Downstream_debug_2.png/600px-Downstream_debug_2.png||height="245" width="600"]]
	226	+[[image:image-20220526164650-13.png]]
226	226
227	227	(((
228	228	Gateway Traffic can see this downstream info
...	...	@@ -237,7 +237,7 @@
237	237	When the downstream packet appear on the traffic of Gateway page. The LoRaWAN gateway can get it from LoRaWAN server and transmit it. In Dragion Gateway, this can be checked by runinng "logread -f" in the SSH console. and see below:
238	238	)))
239	239
240		-[[image:https://wiki.dragino.com/images/thumb/2/21/Downstream_debug_3.png/600px-Downstream_debug_3.png||height="195" width="600"]]
	241	+[[image:image-20220526164734-14.png]]
241	241
242	242	(((
243	243	Gateway Sent out this packet
...	...	@@ -297,6 +297,7 @@
297	297	Receive data
298	298	1:0012345678}}}
299	299
	301	+
300	300	== 5.3 If problem doesn’t solve ==
301	301
302	302	**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:**
...	...	@@ -306,6 +306,9 @@
306	306	* Gateway traffic (from server UI) to shows the data exchange between gateway and server.
307	307	* End Node traffic (from server UI) to shows end node activity in server.
308	308
	311	+(% class="wikigeneratedid" %)
	312	+​​​​​​​
	313	+
309	309	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
310	310
311	311	(((

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