A few ADSL2+ Questions

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Qwest 20Mbps Install Question »
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KPAZ

@qwest.net

Yesterday Qwest activated my 20mbps connection. I did some speed tests and I can't ever get faster then 15mbps.. Most tests run at 12mbps to 14mbps. I spoke to Qwest and they said everything is fine because the modem shows I'm getting 80% of what I'm paying for.

Here is what the modem says:

Max Allowed Speed (kbps)
Down: 18087
Up: 892

SN Margin (dB)
Down: 9.00
Up: 15.50

Line Attenuation (dB)
Down: 19.20
Up: 8.40

CRC Errors
Down: 1548
Up: 5

Isn't my SN Margin down low? And the modem was reset about 3 hours ago and already 1548 CRC Errors. Every time I refresh the modem page I see more CRC errors. And I'm not even using the connection. Do you guys think the wiring in my house is bad? My connection is straight to the phone jack with no filter.

Any suggestions? Would running Cat5e from my phone box to my office help?

Your help is greatly appreciated.

permalink · 2009-06-24 09:01:28 · Print ·

questionable join:2005-10-18 Phoenix, AZ	Re: A few ADSL2+ Questions First of all Have you run any type of speed test and from where? Not all speed tests are created equal. CRC errors happen even if you aren't actively using your connection.
	permalink · 2009-06-24 09:21:49 ·

AthlGrond
Premium,MVM
join:2002-04-25
Aurora, CO

·Comcast

Generally you should expect to get somewhat better than 80% of your trained speed. You are trained up at 18Mbps so 15Mbps does not seem unreasonable.

Your signal levels are reasonably good. (See: »US West/Qwest DSL »What are good or bad numbers from the WAN status page?)

And 1500 CRC errors in 3 hours doesn't sound too bad to me, that would be something like one error in every 125,000,000 bits.

If you wanted to check the possibility of getting a better signal level and thereby a better trained speed you could disconnect the house wiring from customer side of the NID (the box on the side of the house were the phone wiring enters the house) and connect only the modem to it and see if you get better. That would tell you the best you can get without Qwest doing something on their end.
--
I'm not a tax dodger, I'm a potential cabinet appointee!

permalink · 2009-06-24 10:51:43 · Print ·

KPAZ @qwest.net	Thanks for the help guys! I switched out the regular phone line from the jack to the modem with a Cat5 phone line and increased my speed tests results by 1.5mbps. Amazing what a difference a foot of wire does. Now I want to have a homerun installed for sure.
	permalink · 2009-06-26 21:14:32 ·

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A few ADSL2+ Questions

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