First Place your gateway or modem , Connect Your Gateway
Wait for Your Gateway or Modem to be Ready
Gateway or modem may take up to 10 minutes to be ready to activate.
Establish a Temporary Internet Connection ,Connect through WiFi
Look for the Network Name (SSID) and Password printed on the side, back or bottom of your Gateway or modem.
The name may look like Home-XXXX or XFSETUP-XXXX.
Go to the WiFi settings on your WiFi-enabled device and select the Network Name from the list of available networks.
Enter the password when prompted.
If you’re prompted to enter a PIN instead of a password, click the Connect Using a Security Key link to enter the password in the Security Key field.
Open a web browser and go to xfinity.com/authorize
Follow the onscreen prompts to begin activation.
You will need your account info if you have not yet setup a username & password.
Connect to Your Home Network
After activation, connect your devices to your WiFi name and password for your home network, if your Gateway or modem supports a wireless connection.