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...	...	@@ -237,21 +237,27 @@
237	237
238	238	(% class="box infomessage" %)
239	239	(((
240		- AT+RX2DR=3 ~-~--> The RX2 DataRate
	240	+ AT+RX2DR=3 ~-~--> The RX2 DataRate
241	241	)))
242	242
243	243	(% class="box infomessage" %)
244	244	(((
245		- AT+RX1DL=1000 ~-~--> Receive Delay 1
	245	+ AT+RX1DL=1000 ~-~--> Receive Delay 1
246	246	)))
247	247
248	248	(% class="box infomessage" %)
249	249	(((
250		- AT+RX2DL=2000 ~-~--> Receive Delay 2
	250	+ AT+RX2DL=2000 ~-~--> Receive Delay 2
251	251	)))
252	252
253		-when the device running, we can see below info:
	253	+(((
	254	+**when the device running, we can see below info:**
	255	+)))
254	254
	257	+(((
	258	+
	259	+)))
	260	+
255	255	(% class="box" %)
256	256	(((
257	257	[12502]~*~*~*~** UpLinkCounter= 0 ~*~*~*~**
...	...	@@ -263,9 +263,15 @@
263	263	[16027]rxTimeOut                           ~-~-> no packet arrive in RX2 window. (duration: 40 ms)
264	264	)))
265	265
266		-(% class="box" %)
267	267	(((
268		- Another message:
	273	+
	274	+)))
	275	+
	276	+(((
	277	+**Another message:**
	278	+)))
	279	+
	280	+
269	269	[12502]~*~*~*~** UpLinkCounter= 0 ~*~*~*~**
270	270	[12503]TX on freq 868100000 Hz at DR 0
271	271	[13992]txDone
...	...	@@ -276,7 +276,6 @@
276	276	Rssi= -64
277	277	Receive data
278	278	1:0012345678
279		-)))
280	280
281	281	== 5.3 If problem doesn’t solve ==
282	282
...	...	@@ -289,14 +289,25 @@
289	289
290	290	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
291	291
	303	+(((
292	292	In LoRaWAN, the gatewat will use the frequency specify by the server to transmit a packet as downlink purpose. Each Frequency band has different downlink frequency. and the gateway has a frequency range limited to transmit downlink.
	305	+)))
293	293
	307	+(((
	308	+
	309	+)))
	310	+
	311	+(((
294	294	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:
	313	+)))
295	295
296		-{{{Sat Nov 21 08:04:17 2020 daemon.info lora_pkt_fwd[1680]: ERROR~ Packet REJECTED, unsupported frequency - 923200000 (min:865000000,max:867000000)
297		-}}}
	315	+(((
	316	+Sat Nov 21 08:04:17 2020 daemon.info lora_pkt_fwd[1680]: ERROR~~ Packet REJECTED, unsupported frequency - 923200000 (min:865000000,max:867000000)
	317	+)))
298	298
	319	+(((
299	299	In this case, please double check the gateway frequency and the server frequency band.
	321	+)))
300	300
301	301
302	302	= 7. Decrypt a LoRaWAN Packet =