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  1. How to setup purchased modem (SOLVED) | Xfinity Community …

    Sep 6, 2024 · How to setup purchased modem (SOLVED) I need to know the steps to take when setting up a new modem I purchased.

  2. How to Activate New Modem | Xfinity Community Forum

    Jun 1, 2022 · I am getting a new modem today (already an Xfinity customer) because my old one doesn't support the new speed of my plan. How will I go about activating the new modem once …

  3. ANSWERED: How to Self Install and Activate Your Internet …

    Aug 14, 2017 · ANSWERED: How to Self Install and Activate Your Internet Equipment Activate an Xfinity Gateway or third-party modem with the Xfinity app Learn more about activating your …

  4. activate the xfinity without installing the app | Xfinity Community …

    Oct 2, 2024 · Hi, My phone can not install the app due to the low system version (can't be updated). And I already got my xfinity modem and want to activate it. How do I do that without …

  5. ‎activate new modem | Xfinity Community Forum

    Mar 27, 2025 · You can use these steps to complete the process on your end: To activate your internet modem using the Xfinity app, follow these steps: Ensure you are a Primary, Member, …

  6. How to install a new modem-router to replace an old one? | Xfinity ...

    Mar 26, 2022 · We bought a new modem-router and wish to replace an old one without an Xfinity agent help. How to do it?

  7. New modem installation | Xfinity Community Forum

    Dec 12, 2022 · 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 …

  8. ‎Set up new modem | Xfinity Community Forum

    Dec 29, 2024 · 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 activated / …

  9. ‎XB8 user manual | Xfinity Community Forum

    May 11, 2025 · Where can I find the user manual for the XB8 modem. I am not looking for the installation guide or other similar which is readily available

  10. ‎need tech to install new gateway | Xfinity Community Forum

    Jan 29, 2025 · @XfinityThomasC I have been following these steps to install my new Comcast gateway modem and it keeps getting stuck on the step where it says 'lost connection's.