Comcast suddenly running at 1 Mb, Instead of 12-20 Mb

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Jsmith21

@comcast.net

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Hey, the other day, my Comcast 12 Mb/s cable internet service began intermittently losing connection, even though all of the lights on the modem go on when it is reset, and even before it is reset. It will sometimes take only a few minutes before it starts working again, sometimes an hour or two. It will only show up as having a local connection, but no internet.

Ever since the first time this happened, we have been getting speeds of about 900 kbits, instead of the normal 20,000 kbits or higher that we were getting before. The strange thing is, the slow speed is very, very consistent. It is never more than 100 kbits different than the average (950 kbits). The modem is a Motorola Surfboard SB5101.

Anyway, I will attach the signal levels, and some of the log, please let me know if you need more info.

to forum · permalink · 2009-03-05 12:25:06 · (locked)

Joedub

join:2005-10-30

call comcast and get a tech out there. your downstream power levels indicate that most likely you have a outside problem.

to forum · permalink · 2009-03-05 20:41:57 · (locked)

sortofageek
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reply to Jsmith21
Please stick with only one thread per issue. Your topic is here ---> »[Connectivity] Comcast connection dropping/speed issues!
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Join Team Helix * I am praying for these friends .

to forum · permalink · 2009-03-05 21:29:35 · (locked)

US Cable Support > Comcast HSI > Comcast suddenly running at 1 Mb, Instead of 12-20 Mb

Comcast suddenly running at 1 Mb, Instead of 12-20 Mb