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  1. ANSWERED: How to Self Install and Activate Your Internet Equipment

    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 Xfinity …

  2. ANSWERED: Comcast Modem Wireless Gateway Device/Feature …

    Jan 9, 2018 · Xfinity Gateways are all-in-one devices that deliver internet and voice connectivity, whole-home WiFi coverage, network security, control and speed for the ultimate connected experience. …

  3. What modem to choose from recommended list ? | Xfinity Community …

    Jan 16, 2024 · Since I do have now the next gen network available for my house, I want to come back to Xfinity. I don't want to rent a modem, therefore owning my own is what I want. I'm still thinking about …

  4. ‎XB8-T modem | Xfinity Community Forum

    May 3, 2025 · Hello, @ user_72c1df The XB8 can be connected to a customer owned router by placing the device in bridge mode. Bridge Mode is a feature on the Xfinity Wireless Gateway that disables its …

  5. activate the xfinity without installing the app | Xfinity Community Forum

    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 the app?

  6. why is ethernet port is flashing on new Xfinity modem? | Xfinity ...

    May 30, 2024 · Traded in old Xfinity modem for a new one. When hooking up the ethernet cable into the port on the modem with the orange stripe, the ethernet cable is flashing orange.

  7. ‎ANSWERED: How To Turn Bridge Mode on and off on Xfinity modem ...

    Mar 6, 2018 · A modem connects your home to an Internet Service Provider's (e.g., Comcast's) network. A router connects your wired and wireless devices to your modem. The Xfinity Wireless Gateway …

  8. Modem drops internet connection frequently | Xfinity Community Forum

    Apr 15, 2025 · My Arris T25 modem has for some time been dropping the internet connection at least once a week, sometimes more frequently. Sometimes the modem reboots itself, sometimes I have to …

  9. Activate new Gateway modem | Xfinity Community Forum

    May 10, 2025 · Try calling 1-855-652-3446. 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 …

  10. Which modem should I purchase? | Xfinity Community Forum

    Dec 27, 2024 · Which modem should I purchase? I keep getting messages from Xfinity that my current modem needs to be replaced/upgraded to take full advantage of the Gigabit plan I'm on. I generally …