Launch the Internet Explorer browser. Select Internet settings from the drop-down menu by clicking the Gear symbol (or Tools tab, depending on your version of Internet Explorer). In the Home page text box, type http://www.xfinity.com. To save, press the Apply or OK button.
A homepage dialog box will be shown. It is configured to utilize the New Tab page by default. Select the "Open this page" radio box and enter the URL of the desired homepage (e.g., xfinity.com). Click the OK button. You have successfully changed your homepage to xfinity.com.
Turn on your gateway or modem. If you don't see a welcome message to begin setup after you've established a temporary Internet connection, open a web browser and go to xfinity.com/activate. To finish the activation procedure, follow the on-screen steps to validate your Xfinity account. Activation is free, but data usage during activation will count against your monthly data plan allocation.
The magnifying glass icon should be selected. Enter Xfinity Stream into the on-screen keyboard and press the Done button. Choose Download after selecting the Xfinity Stream Beta app. You will need to allow installation of apps from unknown sources in order for this to work.
Go to the Settings Menu. On your remote, press the Xfinity button. To access the gear icon, use the right or left arrow buttons. To access the Settings menu, press OK (or the middle of the directional pad).
Press the Xfinity button on your remote to view the main menu. Then, using the left or right arrow buttons, navigate through the menu. Pressing the Enter button will take you back to the main menu.
Click the Update Now button in the email that was sent to you, or go to xfinity.com/equipmentupdate. You will be asked to enter your Xfinity ID and password. Select "Get Started" from the drop-down menu. Examine the information in the "What You Have" and "What You'll Get" fields to ensure that the equipment described is accurate. Click the Confirm Button to begin the update process.
Download and install the Xfinity xFi App. If you are viewing this instructions on an Android device, or if you have your Google account connected on both your Android device and your browser, this link will take you directly to Xfinity xFi in the Google Play Store, where you can install it right away. The app is free.