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Old 31-01-2010, 12:00   #2
Sephiroth
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Join Date: Jul 2009
Location: RG41
Services: RG41: 1Gig VOLT Rutland: Gigaclear 400/400
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Re: Need Help Poor SNR

Your modem is struggling. The SNR at 28.7 dB is below the 30 dB minim,um required for 256QAM modulation; 33 dB is really the required minimum to provide some headroom. There is more noise than signal, put simply. If you need proof, the 55.5 dBmv upstream power level is higher than it should be which indicates impairment/noise to overcome.

First thing to check is that your coax cables are firmly screwed in both ends. Otherwise call it in, providing your modem stats and full EVERNT LOG to the 2nd Line support newsgroup. If you're on Vista/Windows 7, then search the forum on the term "Windows Live Mail" and you'll find instructions on how to set yourself up into the newsgroup; for XP, it's described on the VM web site.

Also, where are you located?
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