Question about Arris Touchstone 450a (CM450) Modem

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Router cannot connect to the internet.

I have an Arris cable modem and a Linksys Broadband Firewall Router. The router cannot connect to the internet. I unplugged and plugged the cable power and it did not solve the connection problem.

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Turn everything off:
Cable modem unplug the power to the modem if it has a battery remove it.
Router unplug the power to the router
Shutdown any and all computers connected to the router

Turn everything on in this order:
Cable modem wait until all the lights are on but the internet act light
Router wait until the lights goes through it's test cycle and the internet light (wan) is on.
Boot up the computers one at a time after the first computer is fully loaded go to the next computer

Hope this helps

Terry

Posted on Feb 27, 2009

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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 192.168.1.1, 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:
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2. Click the sub-heading 'DMZ'
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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.

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Thank you for using FixYa.

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Hello,

Most cable company's will not allow you to use the USB and the ethernet connection at the same time. You will need to only use ethernet to your PC and your XBOX. Once you have the ethernet cord connected from your modem to the WAN/Internet port on your router you will need to press the reset button on the back of the arris to authorise the router for access. After that is done you will plug you XBOX into 1 of the 4 numbered ports on the router. Then you will need an additional ethernet cord for your PC.

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Step 1:
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Step 3:
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Step 4:
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first check..
Connect the Broadband modem to the computer using an Ethernet cable without the router installed and make sure that the Internet connection is active. If it is not, contact your Internet Service Provider. If it can go online,
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Step 1:
Connect the Broadband modem to the router’s WAN or Internet port.
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Step 4:
check if you are able to go online wired..
if not your router has to be configured first,
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