Xfinity plant
Xfinity globe
Community Forum

changing modem

New Poster

changing modem

picked up a new modem want to install what should I do first?

Expert

Re: changing modem

Connect it to the coax line and power it up. Let it fully sync up with the system ("DS, "US", and the "Online" lights are steadily lit). Connect a computer to it and open up a browser. You *may* see their "Walled Garden" modem self registration page. If so, follow the screen prompts. Have your account number handy.

If not, try calling 1-855-652-3446. That is their device activation line.

If that doesn't work for you you can call 1-800-comcast and tell a rep that you would like to have a new modem provisioned for service. Have the RF / HFC MAC address and the serial number of it handy when you call.