Cable television interference

When helping out my parents move their modem/router that I installed
from then for Xmas, my mom informed me of the 800 or so cable outlets
around the house. Needless to say, figuring out what went where was
difficult, but I finally managed. Turns out, outside the house, off the
pole, is a 2-way splitter, that has been painted over and is really
mounted to the house well. One line wraps around the house and one line
goes into the house. That leg is hooked up to an amplifier, and then
goes back outside. On the wall, there is a mounted splitter with 5 more
legs coming out, wrapping around the house to various places. After
finding the end of the data leg, and pulling it down through the floor
into the basement, the router/modem was set up and worked well. Both
the laptops got good signals, but whenever there was any sort of
network activity, it produced lines of interference on the cable TV
signal. I checked all the connections again, and everything seemed
tight and exactly as it was before the big move. This happens on all
the legs that have gone through that amp.
Any ideas of what this means, and any tips how to address it? I know my
folks won't stfu until I fix it.

On 26 Oct 2006 00:35:40 -0700, (E-Mail Removed) wrote in
<(E-Mail Removed) .com>:

>When helping out my parents move their modem/router that I installed
>from then for Xmas, my mom informed me of the 800 or so cable outlets
>around the house. Needless to say, figuring out what went where was
>difficult, but I finally managed. Turns out, outside the house, off the
>pole, is a 2-way splitter, that has been painted over and is really
>mounted to the house well. One line wraps around the house and one line
>goes into the house. That leg is hooked up to an amplifier, and then
>goes back outside. On the wall, there is a mounted splitter with 5 more
>legs coming out, wrapping around the house to various places. After
>finding the end of the data leg, and pulling it down through the floor
>into the basement, the router/modem was set up and worked well. Both
>the laptops got good signals, but whenever there was any sort of
>network activity, it produced lines of interference on the cable TV
>signal. I checked all the connections again, and everything seemed
>tight and exactly as it was before the big move. This happens on all
>the legs that have gone through that amp.
>Any ideas of what this means, and any tips how to address it? I know my
>folks won't stfu until I fix it.

Sounds like the amp isn't designed for use with cable modems.
[cross-posted to comp.dcom.modems.cable]
--
Best regards, FAQ for Wireless Internet: <http://Wireless.wikia.com>
John Navas FAQ for Wi-Fi: <http://wireless.wikia.com/wiki/Wi-Fi>
Wi-Fi How To: <http://wireless.wikia.com/wiki/Wi-Fi_HowTo>
Fixes to Wi-Fi Problems: <http://wireless.wikia.com/wiki/Wi-Fi_Fixes>

(E-Mail Removed) writes:

> Any ideas of what this means, and any tips how to address it? I know my
> folks won't stfu until I fix it.

It ain't your problem is the good news.

Have them call the cable company about a noisy picture. They'll
come out rework connectors, maybe add an amplifier. My provider was
out here this past week doing exactly that at no cost to me.

--
Todd H.
http://www.toddh.net/

It sounds as though you need a couple of diplexers to go around the amp.

Were I you, I would call the cable company and let them install them or an
amplifier with them built in.


<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> When helping out my parents move their modem/router that I installed
> from then for Xmas, my mom informed me of the 800 or so cable outlets
> around the house. Needless to say, figuring out what went where was
> difficult, but I finally managed. Turns out, outside the house, off the
> pole, is a 2-way splitter, that has been painted over and is really
> mounted to the house well. One line wraps around the house and one line
> goes into the house. That leg is hooked up to an amplifier, and then
> goes back outside. On the wall, there is a mounted splitter with 5 more
> legs coming out, wrapping around the house to various places. After
> finding the end of the data leg, and pulling it down through the floor
> into the basement, the router/modem was set up and worked well. Both
> the laptops got good signals, but whenever there was any sort of
> network activity, it produced lines of interference on the cable TV
> signal. I checked all the connections again, and everything seemed
> tight and exactly as it was before the big move. This happens on all
> the legs that have gone through that amp.
> Any ideas of what this means, and any tips how to address it? I know my
> folks won't stfu until I fix it.
>