I have comcast internet. For the last week, I have had very sporadic
connection. My modem seems to work decent during the day, and then has
trouble syncing in the evening. Sometimes it works for hours, then not
at all. Recycling the modem sometimes fixes it, sometimes it doesn't.
I have tried isolating the modem on a single run with a brand new
cable (disconnecting everything else) and it doesn't seem to matter
whether the modem is all by itself, or on any specific leg. My cable TV
reception is perfect. So I'm thinking one of my neighbors is causing a
problem.

Can I put a high-pass filter in front of my cable modem to keep these
signals from it? I have an initial 2-way splitter...one leg goes to the
"TV side" and the other leg goes to the "modem side". I know it's
customary to install a high-pass filter on the "TV side", but that still
wouldn't seem to keep my modem protected from stray signals coming from
my neighbors. Can I install a high-pass filter on the "modem leg" to
keep the bad stuff out? Trying to avoid calling Comcast and dealing
with all that.

SixDoubleO wrote:

Have you tried logging in to the modem and checking your signal levels ?

$Bill wrote:

I have a Zoom 5011. It doesn't have that capability. Any way to easily
check my signal levels?

SixDoubleO wrote:

A high pass filter that passes the cable modem signal, will also pass any
interfering signal, unless your modem is sensitive to out of band signals.
Also, any filter has to pass the signals in both directions, which includes
frequencies below TV channel 2. Until you know what the interfering signal
is, there's not much you can do about it.

--

(This space intentionally left blank)

James Knott wrote:
So if I'm hearing you correctly....

If my next door neighbor has bad wiring which is causing me problems,
the only way to fix it is to address the problem at the neighbor's
house. There's nothing which can be done on my end?

Like I said....this is very perplexing as everything works fine all day
long (hell, I'm remoted desktop'ed into home right now over the comcast
connection....) but when I get home tonight....around 6:30-8:30 it'll
lose sync.....almost like my neighbor turned something on.

On Tue, 19 Oct 2004 09:53:23 -0700, SixDoubleO
<six*spam*doubleo@hotmail.com> wrote:


I had that for a while. TV was perfect but Internet connection was
sporadic. One leg of the splitter, the one to the modem, had a bad
connection. Loosening then retightening took care of it.
FWIW
YMMV
DFB

I just found that a problem solving database that used to be
only available to RCN employees, is now on the web,
ostensibly for customers to use.
Not sure what value it may have for readers here, but . . .

http://selfcare.rcn.com/wsc/primus/primusBrowse.jsp

maybe it will provide some entertainment?

dj

perhaps I should have given this one

<http://selfcare.rcn.com/wsc/primus/p...bd788313038333
63931303431353632>

<dj>

well, the brackets definitely didn't work for me and my non-news reader, OE.

http://selfcare.rcn.com/wsc/primus/p...30343 1353632

dj

"Dr. Cajones" <drjawn.spamno@remove.yahoo.com> wrote in message
news:3eqdnf1mfJ8WIOjcRVn-jA@comcast.com...

SixDoubleO wrote:

I believe what he's saying is you need to determine what the problem is
before you guess at a solution.

You're only guessing that your next door neighbor is doing something.
And you're also guessing that a particular filter is going to fix the
problem. If you're dead-set on just guessing at things, go ahead and do
what you want. But the smarter thing to do would be to determine what
the problem actually is before you start trying to fix it.

Now if you're not equipped to troubleshoot the issue, then the prudent
thing to do would be to find someone who can. But if you'd rather go
down to Radio Shack, and spend your money on random parts, it's your
prerogative. Just let the rest of us know so we can buy some more stock
in Radio Shack because the odds of you being right the first time
without having done any troubleshooting is next to nothing.

--
Warren H.

==========
Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.
Blatant Plug: Black & Decker Landscaping Tools & Parts:
http://www.holzemville.com/mall/blackanddecker

SixDoubleO wrote:

No, I'm saying that until you have a better idea about what's causing the
problem, you can't do much about it. Assuming your neighbour is doing
something that's causing interference on the frequencies used by your
modem, a filter at your end will do absolutely nothing to improve the
situation and in fact, may make things worse. Why do you think your
neighbour is the cause? The first thing you should be doing, is calling
your cable company, so that they can run tests, which might isolate the
problem.

--

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