If you are having probs with NTL cable modems read this.

[Topa]

Here are a few steps you can take.
First, goto START>RUN>winipcfg, click RELEASE ALL wait a few then RENEW ALL.
Restarting your PC does nothing as the CM runs independently from your PC.

The SECOND thing you can do is this, on the back cover there is a SMALL pin hole. I mean SMMAAALLL. It is the reset button. Stick a pin in there, all the lights will go out, hold it for 5 seconds and release.
This FORCES the CM to reacquire.

The third thing you can do is to open your browser window and go here: http://192.168.100.1/mainhelp.html

This URL is hard coded into the CM itself...you can have the cable UNPLUGGED from your CM and it will still come up.
On the top of this page there are several tabs.
First click CONFIGURATION the EUROPEAN PAL I/B/G should be your Frequency Plan.

Then click the SIGNAL tab. The IMPORTANT # here is the 'Signal to Noise Ratio'. It should be a MINIMUM of 33. If it is not then odds are you have exposed wires which are disrupting your CM service...this happens most during rush hour as the external noise is greatest then. There is nothing you can do about this but call NTL and notify them.

BTW if you hit the REFRESH button on your browser you will see this # fluctuate.

Finally, call and yell...the CM # I use and get thru with is 0845-65000121. FOR NTL CUSTOMERS ONLY.

I hope that this helps some of you.
If anyone else has a few tips please post them here.

Topa

[Edited by Topa on 14-01-2001 at 11:53 PM]

[Reality]

Perhaps yelling at support isn't the best thing to do. They do pretty much all they can from where they are, and collate and esculate issues they can't sort.

Sadly they are restricted on issues that have to be passed up the line when it comes to solutions.

Not saying they are perfect, they're not, but yelling at people who are trying to help is never a good idea :)

That url only works with the motorola (think i have the right one), the 3com sharkfin has a different one and the cmx doesn't have that option at all, though you can connect to it via a serial cable to see power levels and other info when the cm is rebooted.

[Edited by Reality on 15-01-2001 at 12:32 AM]

[Pana]

guys got cable in on saturday.

done the test for signal to noise and mine is 28 !!!!

so what ya tell me is that i need to get onto ntl. yeah

i have had some ping problems but i though it was down to wp, but this probably aint helping either.

[Pana]

guys cheers.

rang ntl up 5 mins ago, they said it is well down and my power level (51) is p*ssed as well.

someone coming out in the next few days :{.

guy on the end of the phone knew his stuff which was cool.

[Hicksee]

that http://192.168.100.1/mainhelp.html doesnt work for me :{
any other way of checking the signal to noise thingie?

ta

[Reality]

Which model/make modem do you have?

[Hicksee]

3com U.S. robotics cmx
thats all i know :D

[[ITV]Tommy Cooper]

I got same model hicks and it don't work for me neither.

:(

[Reality]

Same as mine, great modem - just a pain to check diagnostic stuff.

Taken from a NTL newsgroup

3Com CMX diagnostics
The 3Com CMX does not have a diagnostics web page, but does have a serial communication port on which it produces a log. To read this log, connect your PC's serial port to the CMX's serial port with a null modem cable (or laplink cable). Launch a terminal emulator such as Hyperterminal, and set the serial communication parameters to 38400,N,8,1. Power the CMX off and on again, and watch the log stream by as it configures itself. The information in the log includes the signal levels, as described above. The log is produced only during the boot process.


and thats how you do that ;(

Reality

[Wartris Master]

Hey guys,
I've had my modem for a week now, and appart from the annoying NTL screwups in the Nottingham area it seems to work ok, my ping seems fine, minimum I have had so far was 19 on a counterstrike server.
I've checked this diag page, and there are a couple of questions I hope someone can help me with.

1. under the status tab:
REG-RSP Msg was not received (TIME OUT) FAILED
is this a worry?

2. My S/N is 35, is this close to worrying or fine?

3. powerlevel -4dBmV, this ok?

Thnks guys

"UP THE OOOGLE!!!"

[Topa]

Your signal to noise ratio should be at LEAST 31 any lower and problems occur.

Your power level 'dBmV' should be between -2 and +2 mine is currently at 3 and is ok.

Also your 'Frequency 403000000 Hz Locked' (this is mine[on the SIGNALS PAGE]) Should be the same as the 'Configuration' pages Frequency...if not odds are you are not working.