Re: RoadRunner and my Motorola modem

"BR549" <spammenot@xxxxxxxxxx> writes:

I mentioned that I changed routers to eliminate them as the problem and just
wanted to clarify that when I attached the new router I used it's ethernet
cable.

Oh, okay.

Yes the ip address must come from beyond the modem because if I disconnect
the cable from the modem and release and renew the ip address in the router
it comes up with something like 192.168.100.something, I can't quite
remember. But with the cable hooked up and everything running properly it's
70.127.151.160.

Right.

The motorola modems downstream signal to noise was 38 dB and power level
was -2 dBmV. Upstream power level was 42 dBmv.

Hrmm. That all sounds reasonable.

Since I posted this info I had since went a got yet another cable
modem. Unfortunately the one I got is called a WEBstar by
Scientific Atlanta and when I navigate to it at
192.128.100.1 I only have the following System screen available, which just
lists Transmit Power Level at 45.5 dBmV and Receive Power Level at -4.9
dBmV.

Transmit power level sounds a tad high.

None of the other features screens are available, when I click on
them it states the following:

This feature is not enabled.
This feature has not been enabled in your cable modem.

Please contact your data services provider for more information about this
feature and its availability on the network.

Yeah, I have that modem.

After the cable guy left on Thursday it ran fine the rest of the night. On
Friday we had the same problem so I went to the Bright House offfice and got
a replacement modem, that was the 2nd. It failed and I posted this msg in
the newsgroup. Then today again, I went and got the 3rd modem. It might
run a day or 2 just fine or it might fail, run an hour and fail again.
Every time it fails, all I do is recycle power on it and everything is fine.
I do not have to reset the router and do not loose my ip addresses in the
pc's and I don't believe both my routers cause the same problem.

I concur that you're probably dealing with a cable system or signal
issue.

I also can't believe something in one of my pc's is causing the
cable modem to hang.

I agree.

For lack of anything to do I think I will start logging the times it hangs
and see how long it takes to clear on it's own. If it would stay hung long
enough I could probably get Bright House Networks on the line to
look at it.

Do get them on the horn while yer hung up. At least you can then tell
if their network can still talk to the cable modem. If they can't,
then you know the problem is with the cable modem, signal issues or
cable network.

We've had RoadRunner for a long, long time. Well over ten years and during
that time had 1 cable modem, a cream colored Motorola and as long as the
cable light was on we never had a problem. Max speed with it was 2.5mbps.
About 2 years ago they called, set up an appointment to change out what they
called the legacy cable modems. My speed went to 5mbps instantly and
shortly after close to 7. It's been fine up until just a few months ago
when all this started.



AFter the cable comes into the house, what is the routing of the
signal on its way to your modem (splitters, etc).

My cable comes to the house and attaches to a 3 way splitter. From there
one goes directly to my cable modem, the 2nd to my living room (split there
for tv, dvd recorder) and the 3rd to the family room ( split 4 ways for 2
tv's and 2 pc tv cards).

Thanks for the interest.

For shits and giggles, I would try running with the splitter removed.
Move the cable modem downstairs with the wireless router if needed, or
just put a female to female f connector in place of the splitter. I'm
curious if that cleans things up.

If it does, get the cable guys out there, report the results of your
extended experiment and get them to get your cable modem feed from
directional coupler instead of that standard splitter. Cable modem
gets the low loss output of the DC, TV's get fed by the tap end
(possibly requiring an amplifier for the TV's benefit).

Best Regards,
--
Todd H.
http://www.toddh.net/
.