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CenturyLink & DSL-2740B Links Speed Decays over time

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I live outside Lebanon, OR and communicate through a Remote Central Office (RCO) to the main office at which point I pick up the backbone (I think) through CenturyLink (CL).

CL bought out Qwest and that is the my access to the world.

I have my second DSL-2740B and it has the same issue as the first one.

My download speed slowly decays over time.

When I reset my modem I get 3Mbps, after 24 hours I get 2.5Mbps another 24 hours and I get 2Mbps, another 24 hours and I get 1.5Mbps, etc.

Reset the modem and it is back to 3Mbps


Below are some modem stats, that BTW agree with the equipment at CL

  Downstream  Upstream
Line Coding(Trellis): On                      On
SNR Margin (0.1 dB): 151 170
Attenuation (0.1 dB): 520 290
Output Power (0.1 dBm): 192 123
Attainable Rate (Kbps): 5216 956
  Path 0  
  Downstream    Upstream
Rate (Kbps): 3520 576

The reason my Attenuation is so high is that I live 10,000' from the RCO.


I have tested to San Francisco and Los Angeles and the same thing happens.

Been fighting this for 3 moths now.

Everything was fine with my OLD Westell 7500 modem, but it died.

Anybody have any clues?


Thanks, Fred

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