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;
Greetings, @user_rodv5m! I hope your week has been treating you well. Thanks so much for taking a moment out of your busy day to leave a post on our community forum about activating your new modem. You have definitely come to the right place for assistance.
The easiest way to activate your new modem is through the Xfinity app. You can find step-by-step instructions for how to do this here: https://www.xfinity.com/support/articles/activate-xfi-gateway-app
If you are having issues completing the activation process, please let us know, and we would be more than happy to assist you.
EG
Expert
•
105.9K Messages
20 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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XfinityJamesC
Official Employee
•
1.5K Messages
18 days ago
Greetings, @user_rodv5m! I hope your week has been treating you well. Thanks so much for taking a moment out of your busy day to leave a post on our community forum about activating your new modem. You have definitely come to the right place for assistance.
The easiest way to activate your new modem is through the Xfinity app. You can find step-by-step instructions for how to do this here: https://www.xfinity.com/support/articles/activate-xfi-gateway-app
If you are having issues completing the activation process, please let us know, and we would be more than happy to assist you.
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