Question about Arris Touchstone 450a (CM450) Modem

1 Answer

Telephone dont work

Telephone light just keeps blinking

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 86 Answers
Re: telephone dont work

That light is indicating that you have a phone off the hook, a short in one of your phone lines, or a bad modem. Unplug the phone line from the back of the modem. If it stays solid, plug it back in and go and disconnect every phone in your house. If it stays solid you have a phone issue. Plug them back in one-by-one and see which one causes it to start blinking. If it doesn't go away after unplugging all your phones, you have a phone line issue. If it is still blinking after unplugging the phone line from your modem, your modem is bad.

Posted on Jan 20, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

The internet light keeps turning off after a while. when i first got it, it was working fine.

check for telephone line and splitter
dont use any teleline before splitter

Jun 24, 2011 | AT&T High Speed DSL Modem

1 Answer

My smc router router lights blinking green and orange at the same time under where it say cable at i tried reseting it but it keeps blinking green and orange dont know what to do ?

I would call your internet service provider. They may know of another trick to clear up the issue or there could be an issues in your area that is causing the problem which is out of your control.
Good Luck and vote for me if this answer helped you out. Cheers.

May 13, 2011 | SMC8004CM Modem

1 Answer

My dsl light keeps blinking and I can't get on the internet because it won't stop blinking

  1. Step 1 Ensure that your AT&Tmag-glass_10x10.gifDSL self-installation kit is complete. At minimum, it should contain aDSL modem, an AC adapter, an Ethernet cable, a telephone cable, severaltelephone filters and an installation CD.
  2. Step 2 Installthe telephone filters on each telephone jack that you have a phoneplugged into. Install a dual phone adapter on the jack closest to yourcomputer if you have an answering or fax machine, telephone or analogmodem in the same room. Then plug your telephone equipment into thefilters. Connect the telephone cable that was provided with yourinstallation kit into an unfiltered telephone jack.
  3. Step 3 Insertthe installation CD into your CD-ROM drive. If the installation programdoes not start automatically, click Start > Run > and browse tothe CD-ROM drive directory to find the installation file.
  4. Step 4 Connectthe telephone cable that is attached to the unfiltered wall jack to theback of the DSL modem. Connect the Ethernet cable to the back of themodem and to the Ethernet network interface card port on the back ofyour computer. Connect the AC adapter to the back of the modem and plugit into an electrical outlet. Power the modem on.
  5. Step 5 Checkthe modem lights. There should be at least two lights lit. These willhave labels such as "Power" and "Ethernet." However, these labels maydiffer depending on the model of modem you received in yourinstallation kit.
  6. Step 6 Completethe software installation. Enter your chosen username and password whenprompted. Check your modem to see if the light labeled "DSL" or"Internet" is lit. Open a web browser window to see if your DSL servicehas been successfully installed.

Jul 06, 2010 | AT&T High Speed DSL Modem

2 Answers

I have had problems connecting to internet all weekend (internet - red light), am on now but internet and ethernet green light keep blinking, is this ok.

No because dsl light should be solid green light. You need to contact your ISP to check if there is a problem on the network.

Jul 11, 2010 | Modems

1 Answer

I plug all the cord in the back of the modem.... the power light blinks, an then the dsl, an thn the ethenet light then cuts off all the lights, for those three, an start all over again an again.. never...

If the modem was supplied by your Internet Service Provider, telephone them for Technical Support, either to trouble-shoot, or to replace the modem.

Obviously, they want to keep you as a customer, paying them money every month. So, they should replace the modem "no questions asked".

Jun 15, 2010 | Arris SURFboard SB4100 Modem

1 Answer

I get a busy signal when I pick up the phone. My

on your modem just push the reset button on the back with a pen or paperclip and let it recycle it should work fine

Oct 25, 2009 | Arris Touchstone 450a (CM450) Modem

3 Answers

Assistance with blinking light on my DSL modem

First thing to do is unplug your DSL modem and leave it unplugged for about a minute then plug it back in and see if problem is corrected. If not you should contact your ISP tech support. You could have a bad line from the phone company or bad connection in your house. Also if you have filters installed on your other phones you can have a bad filter that is causing interference and keeping yoiur DSL from working properly. You should go to "Start" > "Run" and type cmd and hit "Enter"
In the command window type ping -t (Enter) This will start a continual ping. If you are getting ping times exceeding 70 - 120 ms that could be a sign your DSL is not functioning properly or if you get packet loss. That is when the ping time doesn't return a time periodically.

Sep 23, 2009 | Westell Wirespeed LiteLine 6100...

1 Answer

Problem with my d-link dsl-2320b modem

try resetting the browser try to change the micro filter turn off the modem and computer power it back and check try connecting the modem to the main telephone socket check if the if ur phone line works fine after all these check the problem still continues its dsl connection problem

Nov 03, 2008 | D-Link DSL-2320B

4 Answers

My ethernet light is blinking

Make sure you have internet. The ethernet light is blinking because what ever u have plugged into it is talking to the modem. The modem will then take that request and ask for it on the DSL/internet line. Make sure the DSL light is steady on and the internet light is on or flashing with activity.

Oct 10, 2007 | Westell Wirespeed LiteLine 6100...

1 Answer

Zoom X5 ADSL light not blinking

May be your ADSL modem has clapped out it sounds like it. You say you can connect via the PC modem that means the dialup is working......I imagine you have tried the ID logon and password for the ADSL also and it still wont connect. Try support at your ISP and if it still dont connect then it must be had it, you will need to buy another.

Aug 30, 2007 | Zoom 5551A Modem

Not finding what you are looking for?
Arris Touchstone 450a (CM450) Modem Logo

531 people viewed this question

Ask a Question

Usually answered in minutes!

Top Arris Modems Experts


Level 2 Expert

233 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Terry Allen
Terry Allen

Level 3 Expert

680 Answers

Are you an Arris Modem Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides