Arimex comcast router won't talk to belkin wireless g plus mimo router

Comcast has a little known "trick" that they use when setting up users. Here's how it works:

When Comcast first comes to setup your new cable modem service, they insist on connecting it to your computer and "testing" it. Most people think nothing of it, and that it's good customer service ...truth be told, what they are doing is attaching your computer's MAC address to that cable modem, so that you cannot create a wireless network. This is because they want you to pay them $150 to do this for you.

In this situation, since the modem is a modem/wireless router in one, my guess is that the MAC address on your machine now does not match the MAC address on the new router, which is what Comcast has stored in their database(s).

Try this: on your computer (while connected to the modem), perform a release on your IP address (start, run, cmd, then type "ipconfig /release"). Disconnect the ethernet cable from the computer. Turn computer off completely. Hold down the reset button on the cable modem until it performs a reset. Once it's back up and running, boot up your computer with the cable back in the ethernet port.

The cable modem should assign a new address to your computer. However, that may or may not work ...this is an easy workaround with a Linksys router, but not necessarily with the all-in-one devices.

Worst case scenario: contact Comcast and notify them that the new modem is not recognizing your computer's MAC address and that it needs to be updated in their system. They will scan your computer (through the telnet interface on your modem) and get your computer's MAC address, then (hopefully) make the necessary changes on their end.

After that, everything should work flawlessly. If not, insist on a Comcast tech to "fix" the service that you are paying for.

Good luck - hope this helps :)