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ANSWERED: Activating your Xfinity Wireless Gateway

Activating an Xfinity Wireless Gateway

This article guides you through the steps to install and activate your Xfinity Gateway. If you are replacing a device that is currently installed in your home, be sure to disconnect that device before following the steps below.
Place Your Gateway
  1. Find the cable and power outlets most centrally located in your home.
  2. Place your Gateway off of the floor and in an open area away from exterior walls, metal surfaces, microwaves, and windows. Avoid cramped spaces and anything that can block the device from broadcasting freely.

Plug in Your Gateway

  1. Plug the power cord into your Gateway and then into an electrical outlet.
  2. Screw one end of the coaxial cable into the Cable In/RF In port on your Gateway and the other end into the cable wall outlet. Make sure the connections are finger tight.
  3. If you subscribe to Xfinity Voice service, connect your telephone to the Tel 1 connection on your Gateway using a telephone cord.

Wait for Your Gateway to be Ready

Your Gateway may reboot, and it could take up to 20 minutes for it to be ready to activate. Make sure the lights appear as described below before moving on to the next step. Do not unplug your Gateway during this process.
  • If your Gateway has multiple lights on the front, the Power, US/DS, and Online lights should remain solid for at least one minute and the WiFi light(s) should start blinking.
  • If your Gateway has only one light, it should remain solid white for at least a minute.


Establish a Temporary Internet Connection to Activate

If you prefer to use a smartphone, tablet, or laptop with WiFi connection:
  1. Look for the Network Name (SSID) and Password printed on the side, back, or bottom of your Gateway (the name should look like Home-XXXX or XFSETUP-XXXX).
  2. Select the name from the list of available networks on your WiFi-enabled device and 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 found on the Gateway.
If you prefer to use an Ethernet connection:
  • Plug the Ethernet cable into one of the open ports on your Gateway until it clicks. Plug the other end into the Ethernet port of your computer. The Ethernet port will light up when successfully connected.


Activate Your Gateway

  1. Once you've established a temporary Internet connection, if you're not automatically presented with a welcome message to begin setup, open a web browser and navigate to Follow the on-screen prompts to verify your Xfinity account and complete the activation process.
  2. When you've finished activation, your Gateway may reboot. It may take up to 10 minutes after activation before you can connect to your home network.


Connect to Your Home Network

After the Gateway has been activated and after a possible reboot, you may need to connect your devices to your home network if you changed the network name and password.

  1. Go to the WiFi settings on your WiFi-enabled devices (e.g., smartphone, smart TV, laptop).
  2. Select your home network WiFi name and connect with the password. If you changed this during or after activation, be sure to use the new one you set up.
    Note: The Xfinity WiFi home hotspot may take up to 24 hours to broadcast. For more information, please see Questions about the Xfinity WiFi Home Hotspot.



If you're activating an Xfinity xFi Gateway (models Arris 1682G, Cisco 3941T, Technicolor CGM4140COM, or Arris TG3482G), you can use the steps below or download the Xfinity xFi app on the Apple App Store or on Google Play for an easy, guided setup process. To determine the type of Gateway you have, check the make and model information located on the bottom of your device. You can also check this information in My Account.



Activating an XFINITY xFi Gateway with the XFINITY xFi App


Activation Instructions

  1. Launch the XFINITY xFi app and sign in using your XFINITY username and password. (You must be the primary or an unrestricted secondary user to access.)
    Sign into the XFINITY xFi app
  2. Select I'm setting up my Wireless Gateway. After activation you can continue to use the XFINITY xFi app to manage your home network.
    Select where you'd like to start with your wireless gateway
  3. Select Get Started to begin the process of setting up your Gateway. The entire process should not take longer than 20 minutes.
    Start the setup process by selecting get started
  4. First, we'll need to identify your Gateway. Select Use Camera to scan the QR code on the side or back of the device. The QR code should contain all of the information needed to begin activation. You may also be prompted to grant the XFINITY xFi app permission to access your smartphone's camera.
    Your camera can scan the QR code to continue with the setup
    • Note: If your device does not have a QR code to scan, you will need to enter the 12-digit CM MAC number found on the side or back of the Gateway. Select Enter Code Manually and follow the on-screen prompts. You may also be prompted to enter the CM MAC number even if your device has a QR code if we need additional information.
  5. Your smartphone's camera will open within the XFINITY xFi app. Find the QR code and focus the camera on it. Once the QR code has been successfully scanned, you will see a green check mark.
    Scanning your code will reveal various information about your device
    • Note: Keep your smartphone as steady as possible. If the camera has trouble focusing on the QR code, try slowly moving your smartphone away from and towards the QR code.
  6. The app will then take you through the necessary steps to set up your Gateway and activate your XFINITY Internet/XFINITY Voice service. For the best WiFi coverage, set up the device in the most centrally located place in your home where there is also a cable outlet.
    Follow these steps for the best placement of your device

    Also, avoid placing the device in your basement or attic as this can interfere with your WiFi signal. Keep it out of cabinets or closets, and make sure it is off of the floor. Select Next to proceed through these tips.
  7. Once you've found the best spot for your Gateway, follow the instructions to connect the coaxial cable and power cord.

    The lights on the front of your Gateway will flash and blink as the device prepares for activation. Select Ready to Go! to continue.
    Make sure your device is plugged in and turned on
  8. Now that your Gateway is connected, it's time to personalize your home WiFi network name and password. Enter a WiFi name and password that is easy to remember and secure. Select Next.
    Enter your wifi name and password and select next
  9. Confirm the WiFi name and password you entered are correct. If you need to make changes, simply select the back arrow in the top left-hand corner of the screen. If you are also activating XFINITY Voice, you will see your phone number on this screen. Select Confirm and Finish Up.

    Note: For customers swapping an existing xFi Gateway with a new one, you may be presented with the WiFi name and password associated with your previous device. You can choose to keep them the same, or create a new WiFi name and password. If you change the name/password, you'll need to reconnect all your devices using the new information.
    Make sure you have the right name and password for your wifi network
  10. Your home network setup will now begin. This part of the process can take up to 10 minutes to complete, during which time you will see status updates at the top of the screen. You will also be prompted to enable push notifications to be alerted when activation is complete.
    the setup should only take ten minutes for completing its four steps
  11. Once your Gateway is activated and your WiFi is ready to go, you'll be presented with instructions on how to connect to your new WiFi network. Two shortcuts are provided to make this process even easier. Simply copy your WiFi password to your clipboard by selecting Copy and then Go to Settings. From there, go to the WiFi settings on your device, wait for your new WiFi name to show in the list of available networks, join the network and then paste your password to connect.
    Select go to settings once you are ready to continue to your wifi network

**NOTE**: Remember, you'll need to connect all of your WiFi-enabled devices using the WiFi name and password you created.

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Last update:
‎03-06-2018 04:50 PM
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