Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection. Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

Also, using a good quad shield RG-6 will help the situation. Make sure the
shield is grounded somewhere along the line.

--
Steve Barker


"Felder" wrote in message
ups.com...
Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection. Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

There is coax and there is coax. Some
coax is not meant for the broadband
signal from cable TV. Some Coax has
very poor shielding. Some older coax
for VHF/UHF TV was not 100% shielded.
Check the type
of cable in your run as that might be
part of the problem.

Felder wrote:
Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection. Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

On Tue, 20 Feb 2007 02:05:01 GMT, Art Todesco
wrote:

There is coax and there is coax. Some
coax is not meant for the broadband
signal from cable TV. Some Coax has
very poor shielding. Some older coax
for VHF/UHF TV was not 100% shielded.
Check the type
of cable in your run as that might be
part of the problem.


And the quality of the connectors (and their installation) is
important too.

Felder wrote:
Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection. Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

--
Mark Lloyd
http://notstupid.laughingsquid.com

"Unlike biological evolution. 'intelligent design' is
not a genuine scientific theory and, therefore, has
no place in the curriculum of our nation's public
school classes." -- Ted Kennedy

On Feb 19, 8:17 pm, "Felder" wrote:
Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection. Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

no. but clarification needed: this sounds like a self-installation
that simply needs a cable company technician. our cablemodem runs off
basic time warner RG6 cable wire. the cable company in buffalo ny
installs and maintains it. does yours?
are you speaking of a second type of wire, ethernet [category___]
wire fed from a router? here that is maintained by the homeowner.

On 19 Feb 2007 17:17:14 -0800, "Felder"
wrote:

Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection.

I have cable internet, which works well. I put the modem as close as I
could to where the cable enters the house, and ran ethernet (CAT5)
cable the rest or the way. Also, CAT5 is easier to handle than coax.

Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

And (once you get a good connection) there's other things to worry
about. An inexpensive router between the cable modem and the
computer(s) is a good idea, even if all you have is one computer.

You can ask the cable company about that (SOME are helpful that way),
but there's really no need to. It's YOUR network.
--
Mark Lloyd
http://notstupid.laughingsquid.com

"Unlike biological evolution. 'intelligent design' is
not a genuine scientific theory and, therefore, has
no place in the curriculum of our nation's public
school classes." -- Ted Kennedy

Felder wrote:
Howdy all. I recently upgraded my internet connection from dial-up to
high speed via cable (about time, I know). Since installing the cable
I have been having problems getting connected to the internet. If I
connected the modem straight to the cable drop coming in the house I
would get a good connection, but when I run a cable from the drop to
the computer (about 25', no splitters) I would fail to get a
connection. Sometimes it would connect, but most the time it would
not. So, I got to looking at the cable run (finished basement, drop
ceiling) and discovered that in two places the cable was running along
side and sitting right on top of some romex. Hmmm, I thought to
myself. Could I be getting interference on the cable from the romex?
So, I moved the cable several inches away from the romex and low and
behold a got a good internet connection.

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder

This is my second try, but my response from yesterday
didn't show up in my list today.

You did the right thing in moving the coax away from the
power line.

Generally speaking, it is a bad idea to run
communications cables parallel to power cables. There
is always a good chance of interference. When I was an
engineer at NASA the standard policy was to never run
power cables and signal cables in the same raceway. And
when signal and power cables have to cross they should
cross at right angles.

Even if there is no apparent problem when running power
and signal cables together there may be when unusual
power conditions occur. I have been told of severe
consequences when such events occur.

In the home power and signal cables should always be run
in separate wall cavities.

Bill Gill

I have a cable guy coming out later this week to check my signals so
I'll ask him if the electric lines could cause enough interference to
affect my internet signal. It appears so and makes sense to me
especially if the cable is right on top of and running parallel with
the romex. Has anyone had any similar experiences?

-Felder


This is highly correct.....running parallel to electric ( AC ) lines
will cause interference. AC lines create a magnetic field around the
AC wire.......when running Cable line parallel to it; the magnetic
field basically raps or surrounds the Cable line and therefore causing
interference. Note-The magnetic field will not be felt if cable line
is run at a 90 degree angle across the AC line nor if cable line is
far enough away from the AC so that the "M" field does not encircle
it. But- you got it and found it.....good job!!

Dean