Connect it to the coax line / outlet and power it up. Let it fully sync up with the system. Check that the front or the top panel indicator light(s) is / are steadily lit.
Then 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 mobile telephone number, your Xfinity username and password, or the account number and telephone number associated with your Comcast account handy.
If not, try calling 1-855-652-3446. That is their self-install 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 / CM / HFC MAC address and the serial number of it handy when you call.
There is also the option of using their Xfinity App for activating modems;
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.
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EG
Expert
•
106K Messages
12 days ago
Connect it to the coax line / outlet and power it up. Let it fully sync up with the system. Check that the front or the top panel indicator light(s) is / are steadily lit.
Then 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 mobile telephone number, your Xfinity username and password, or the account number and telephone number associated with your Comcast account handy.
If not, try calling 1-855-652-3446. That is their self-install 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 / CM / HFC MAC address and the serial number of it handy when you call.
There is also the option of using their Xfinity App for activating modems;
https://www.xfinity.com/support/articles/activate-xfi-gateway-app
(edited)
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XfinityEva
Official Employee
•
1.2K Messages
10 days ago
Hi there! Are you still in need of assistance to set up your new modem? We have a step-by-step guide here and it also includes a video!
You may start with downloading the Xfinity app and checking out the article above. If you have any other questions please let us know.
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EG
Expert
•
106K Messages
10 days ago
@mfredri
Did any of those methods work for you ?
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