Comcast XFINITY Modem Activation
Setup your new XFINITY cable modem by following these easy steps.
- Find your Comcast account number and phone number associated with your account. This is located on your bill.
- Follow modem setup first
- Open a web browser from a computer. Comcast's activation page should automatically open. If not visit www.xfinity.com/activate
- Enter account number and any other questioned details.
- Setup will begin and install your new modem.
- That's it! If you require further help, you can contact Comcast support through chat or phone here.
- Feel free to contact us too if you are still having problems or require further assistance. We will do our best to answer as soon as possible.