Community Forum

Replacement modem

Xfinity Forum Archive
About the archive project

Xfinity Forum Archive...

This is an archived section of the community.

Content in this area has been identified as outdated or irrelevant.

This change was done in an effort to make the forum easier to use and to keep only the most helpful and recent content active.

Post your questions in the Xfinity Community

Regular Visitor

Replacement modem

 I  received a replacement modem for faster speed. Can I just replace the NEW MODEM with the existing wires I already have. ??

Regular Contributor

Re: Replacement modem

Yup... just move the wires over and you should be good to go.  If you're not online when you do then hook up your PC to the modem via Ethernet and reboot the modem.  When it comes up and you open a browser you should get the activation page where you'll login and click a couple of things and that will activate the modem.  

Expert

Re: Replacement modem


diner45 wrote:

 I  received a replacement modem for faster speed. Can I just replace the NEW MODEM with the existing wires I already have. ??


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.

FWIW, something else is going on with the device synching up with the CMTS / system. If there are no RF signal / connection quality / block synch issues hardware malfunctions, the "Online" light should be lit steadily regardless of whether or not a modem has yet been activated / provisioned for service



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
Official Employee

Re: Replacement modem

Hi diner45, if you are still needing assistance with activating your modem I could assist here too.

 

Thank you


I am an Official Comcast Employee.
Official Employees are from multiple teams within Comcast: CARE, Product, Leadership. We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!