Question about Arris Touchstone 450a (CM450) Modem

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Cable modem + dlink router

I am home for the holidays and am trying to hook up my dlink router to the arris cable modem to no avail. I followed the instructions on the internet but both my laptop is registering the wireless connection but will not connect as well the other computer has limited or no connectivity... help please

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Re: cable modem + dlink router

Yeah! You rock.

I'm not the original poster but I googled for the same problem and tried your fix -- it worked.


Posted on Sep 29, 2008

Re: cable modem + dlink router - Arris Touchstone 450a (CM450) Modem Modems

Read the bible every day!

Posted on Jul 13, 2008

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Re: cable modem + dlink router

Your modem needs to be rebooted in order for your router to pull an IP from the modem. To do this, look for a little hole in the back of your modem and use a pen to push the button. Wait for the reboot to finish and then try again in about 20 seconds.

Posted on Jan 20, 2008

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Arris Model: TM602G S/N: TM02AH1G6 Modem is not communicating with my Linksys router-WRT160N V3 or my Linksys Compact Wireless-G USB Network Adapter with Speedbooster. I have spent hours online With...

Hi ltuttle650,

If your modem is not communicating with your Linksys router, your Arris modem was most likely installed directly to a PC or Mac when either you or a technician installed it. As soon as it connected it registered your MAC address from your NIC. You need to make your sure that the modem is still talking to the PC or Mac. Please try the steps below.

1. Find out what your NIC's MAC is (go to "Start", "run", "CMD", "ipconfig/all")

2. Copy down your NIC's "Physical Address." That is the MAC.

3. Go into your router's web based utility (Linksys is, username:none ; pw: admin) and click on the "Advanced" tab.

4. Then click on the "MAC Address Clone" tab.

5. Type in the number that you copied down. Click "Apply."

6. Now power cycle your Modem while it is disconnected from your computer and router. Power Cycle the router. After everything has rebooted connect the router to the modem and you should be good to go!

In most cases, this should work, and you ought to have internet access now.

If this did not work, the following is a quick fix:
1. Go to the 'Applications & Gaming' tab
2. Click the sub-heading 'DMZ'
3. Click 'Enable'.
4. Click 'Save settings'.
5. Wait for the settings to save, and click 'Continue'.

If this doesn't work, I would recommend calling your cable ISP and telling them that you need a modem that will work with more than one computer, or you need them to send a tech out who is able to set up the internet through a router.

Hope it helps.

Thank you for using FixYa.

Apr 14, 2011 | Arris Modems

1 Answer

Setting up xbox live

ARRIS modem is a phone/hsi modem. What youll need to do is first turn power off on xbox then unplug the power supply from the back of the Arris modem and unscrew the coaxil/cable wire from the back of the modem for about a minute. Then plug in the power cord to the modem wait another half minute then screw in the coaxil/cable wire....wait for the lights to come back on make sure the online light is solid green not flashing and follow the ethernet cable (Looks like a thick telephone wire) and make sure you have that ethernet cable seated/snapped into the ethernet port on your xbox. Then turn the xbox on and do connection test. FINISHED..IF it's still not working make sure you have Internet service from your provider and if using a router bypass it at first see if you can get onto xbox live without the router. If you can with just connected directly to your arris modem without the router involved. If you do want to use wireless contact your router manufacture and or xbox support at 800-469-9269.

Apr 24, 2010 | Arris Touchstone 450a (CM450) Modem

1 Answer

I want 2 play my ps3 online using my arris modem but when i try to connect it it says ip address failed and i dont have a router waht can i do

You should use a router, but if you cant, try hooking everything up like normal, then pull the power cord on modem for 10 full seconds, hook back up, wait 5 minutes and then try.

Jan 23, 2010 | Arris Touchstone 450a (CM450) Modem

1 Answer

Hooked up arris modem with lynksys G series router

You have to set seting from routers menu. To use it hold 15 second router restart button, that restore factory setings, then go browser , and use username "admin" and password "admin" in default. There you can set setting by your connection.

Aug 12, 2009 | Arris Touchstone 450a (CM450) Modem

1 Answer

Link light blinking

On these cable modems the link light is supposed to blink when you are connected to a router/pc. If you are hooking up a wireless router new you need to power cycle/reset your cable modem before you hook up the wireless router so that way it can refresh its ip address.

Mar 21, 2009 | Arris Touchstone 450a (CM450) Modem

1 Answer

Wi-Fi isn't working

This could be a duplex issue. When you log into the belkin does is assign you an IP address? Have you used a ballpoint pen to reset the EMTA since you have connected the router?

Mar 01, 2009 | Arris Touchstone 450a (CM450) Modem

3 Answers

ARRIS Modem + D-Link router = no internet

when you are on Cable Internet with a "modem" only connected directly to the computer, what the ISP see is the computer's MAC Address (command prompt -> type ipconfig and hit enter).

put a router (which has it's own MAC Address) in-between and the ISP wont let you cause it sees the router not the computer.

check physical connection: cable modem -> router -> computer(hard wire for this troubleshooting)

access the d-link gui and locate the “Clone MAC Address" button (supposed to clone the computers MAC Address - verify if it's the same), save settings & reboot the router.

Jan 26, 2009 | Arris Touchstone 450a (CM450) Modem

3 Answers

Switched to cable(arris modem) can't set up network

cable dsl same thing. Did you switch providers and get new modem from them? If so. Just delete previous netowrk and install new one let pc discover new one. Also, with your router you got a disc. It should install correctly. Perhaps it is previous network that is hindering you.

Dec 29, 2008 | Arris Touchstone 450a (CM450) Modem

1 Answer

I cant get out to the internet when I connect the netgear router.

Be sure that your cable company has enabled your internet. Power down the cable modem, power down any routers and computers. Start cable modem first, after internet connectivity is indicated, power up the router (if you have one) and then power upi the pc

Dec 27, 2008 | Arris Touchstone 450a (CM450) Modem

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