Activate new third party modem without the Xfinity App

user_9iy4ak Thank you for reaching out to let us know you need assistance activating your modem without the Xfinity app. To activate your modem without the Xfinity app, you can use the Xfinity website. First, connect your modem to a power source and an active cable outlet. Then, visit the Xfinity activation page https://www.xfinity.com/activate on a web browser. Sign in with your Xfinity ID and password, and follow the on-screen instructions to complete the activation process. Ensure that your modem's lights indicate it is ready to activate, typically by showing a solid or blinking white light. For detailed steps, refer to the Xfinity support resources.

user_9iy4ak Hi there! If you are still having issues with activating our app our team is here to help. Please feel free to send us a DM with your name and address to get started. 
To send a "direct message" / "private message" message to Xfinity Support:
 • Click "Sign In" if necessary
 • Click the "Direct Message" icon
 • Click the "Start new conversation" (pencil and paper) icon
 • The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there
 • As you are typing a drop-down list appears. Select "Xfinity Support" from that list
 • An "Xfinity Support" graphic replaces the "To:" line
 • Type your message in the text area near the bottom of the window
 • Press Enter to send it