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Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

Content

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16	16	* End Node traffic (from server UI) to shows end node activity in server. (Normaly possible)
17	17	* 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)
18	18
19		-
20		-
21	21	(% style="color:blue" %)**1. End Device Join Screen shot, we can check:**
22	22
23	23	* If the device is sending join request to server?
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212	212	* This packet must match the frequency of the RX1 or RX2 window.
213	213	* 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.**
214	214
215		-
216		-
217		-
218	218	== 5.2 See Debug Info ==
219	219
220	220
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328	328	* Gateway traffic (from server UI) to shows the data exchange between gateway and server.
329	329	* End Node traffic (from server UI) to shows end node activity in server.
330	330
331		-
332		-
333		-
334	334	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
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336	336
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447	447	= 10. Why i got the payload only with "0x00" or "AA~=~="? =
448	448
449	449
450		-* If you are using US915, AU915 and AS923 frequencies.This is normal phenomenon.
	442	+**Why this happen:**
451	451
452		-(((
453		-When using the frequency mentioned above, the server sometimes adjusts the rate of the node, because the node defaults to the adaptive rate.
454		-)))
	444	+For US915, AU915 or AS923 frequencies.It is possible because: .
455	455
456		-(((
457		-When the server adjusts your node rate to 0, the maximum payload length is 11 bytes. The server sometimes sends an ADR packet to the 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 an additional 00 data packet.
458		-)))
	446	+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		-* (((
461		-Solution: Use the decoder to filter out this 00 packet.
462		-)))
463		-* (((
464		-Some node decoders may not have filtering function, or you need decoders of other servers and formats. Please send an email to [[david.huang@dragino.cc>>mailto:david.huang@dragino.cc]]
	448	+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.
465	465
466	466
	451	+**How to solve:**
467	467
468		-
469		-)))
	453	+Solution: Use the decoder to filter out this 0x00 packet.
470	470
	455	+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]]
	456	+
	457	+
	458	+
471	471	= 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
472	472
473	473