Summary

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Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

Content

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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)
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19	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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217		-
218	218	== 5.2 See Debug Info ==
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333		-
334	334	= 6. Downlink Issue ~-~- Packet REJECTED, unsupported frequency =
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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.
	447	+* If you are using US915, AU915 or AS923 frequencies.It is possible because: .
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		-)))
	449	+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.
455	455
456		-(((
457	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		-)))
459	459
460		-* (((
461	461	Solution: Use the decoder to filter out this 00 packet.
462		-)))
463		-* (((
	454	+
464	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]]
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467	467
468		-
469		-)))
470		-
471	471	= 11. Why my Dev EUI and APP EUI is 0x000000000000, how to solve? =
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