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Xfinity from Comcast is currently outspread in 35 states and is available to 111.6 million of the U.S. populace. That number makes Xfinity the largest cable broadband provider nationwide. While Xfinity is widely known for its high-speed cable broadband, the provider also offers fiber internet service with speeds that ascend to 2 Gigabit, but as of yet, fiber internet from Xfinity is available in select areas only.

So you are here because you have chosen Xfinity as your new internet service provider? We understand getting a new connection can be exciting. You finally get out of the ordeal of leaving behind your old connection in hopes of a new much faster connection. You probably could not stream Netflix endlessly before. You probably could not game during peak hours. Your wireless connection always lagged you down.

But now that you have subscribed to your very own Xfinity Internet, the question is what do you do next? The happiness of connecting to your new internet service can only be fully felt if you have completed the process of installation and activation. You can get there via two routes. You can either choose to go the DIY way and self-install your Xfinity internet or you can invest a few bucks to save your time and get it done professionally. But let us give you a cheat code. Self-installing your Xfinity internet is a lot easier than you think! 

How does it work? Well, sit back and we shall go step-by-step through the whole self-installation process.

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The Steps to Follow When Self-Installing Your Xfinity Internet

Order the Xfinity Self-Install Kit

If you have thoroughly made up your mind to go the self-installation route, you would need to order a self-install kit. The best part is you get the kit without paying extra. You heard that right! When you subscribe to Xfinity internet, you can choose to get the self-install kit delivered without an extra charge.

Now that you have paid for the internet service and you have the self-install kit, here are the next steps, all streamlined properly, so you do not get lost in the contents of the kit you have in front of you. We will briefly outline each step starting from the items included in the kit. Make sure you count the items, one by one, so nothing goes missing!

Open the Xfinity Self-Install Kit

Hold your horses. Do not scatter around your equipment. While you unpack to make sure you have the following equipment pieces in the kit – consider this a prerequisite to the installation process, and do not take it lightly.

To help you get started, here is a list of everything in the kit:

  • Customer Privacy Notice and Agreement for Residential Services
  • Return Equipment Card that instructs you on how to return any Xfinity equipment
  • Setup instructions in the Getting Started Guide
  • xFi Wireless Gateway that combines the functionality of a modem and router for in-home Wi-Fi connectivity
  • Coaxial cable
  • Ethernet cable
  • Power cord

Start the Self-Install Process

Is all the equipment in the kit intact? Nothing is missing? Did not lose anything in the pile of wire rubble on your computer desk? Great. Now you can advance to the installation process. Follow each step meticulously so you do not have to troubleshoot where you went wrong in case your internet is not activated after all the struggle.

Note: Even if you have chosen to use third-party equipment instead of the Xfinity Gateway, essentially speaking the process remains the same.  

Step 1: Find a Spot for Your Xfinity Gateway

  1. You need to place your Gateway in the right location, one that is central to all parts of your house.

Any centrally located spot for your device is perfect, but remember the signal from the Gateway is also prone to interference such as that posed by walls, microwaves, and other forms of electrical equipment. Ideally, none of that should come in the way of your Gateway.

Step 2: Connect Your Xfinity Gateway

  1. Grab the power cord and plug it in the back of your Gateway.
  2. Take the other end of the power cord and plug it in the nearest available electrical socket.
  3. Connect one end of the coaxial cable to the nearest Xfinity cable outlet in the wall.
  4. The other end of the coaxial cable will connect to the xFi Gateway.
  5. If you have subscribed to Xfinity Voice service, connect your telephone to the Tel 1 port on the Gateway.

Step 3: Your Gateway Powers Up  

Before the activation process, your gateway must power up. The standard boot-up time is 10 minutes, however, it may take up to 20. Do not unplug any of the connections you just made. If each connection is rightly in place, the Upstream & Downstream i.e. US/DS, POWER, and ONLINE lights will become solid and steady. The 2.4 GHz and 5 GHz lights will blink. If that is not the pattern you see, steps may have to be retraced to find where you went wrong.

Activate Your Xfinity Internet Service

Step 1: Establish a Temporary Internet Connection

With all the connections to the gateway made, we head to the activation process. You can either choose from Ethernet or go for a Wi-Fi connection.

Ethernet Cable
The quickest route is to connect your PC to the gateway via an Ethernet cable. Simply connect your computer or laptop to the Xfinity Gateway via an Ethernet cable. If the Ethernet port lights up, the connection is made.

Wi-Fi Connectivity
The go-to route is an Ethernet cable for a temporary internet connection aimed at activation. If, however, your gateway or modem has support for a wireless connection, you can connect through Wi-Fi.

  • Search for the Network Name and Password or key on the back of your gateway
  • Go the Wi-Fi settings on your device, PC, laptop, or smartphone. Input the credentials from the Gateway device. You would be prompted to either insert the password in the password field or asked for a PIN – if a PIN is needed, click on ‘Connect Using a Security Key’ and enter the password there.

Step 2: Activate Your Gateway

Once you are connected to the internet, it is time to activate your Xfinity internet service.

  1. Choose a browser and go to
  2. Do not let your attention be swayed. Concentrate fully so you do not have to redo from scratch. Follow each step displayed by the website and you shall be led to the activation process.

It takes an approximate of 10 minutes for this to complete so do not get all hasty! 

Step 3: Connect Devices to Your New Internet  

Once the temporary internet connection has been employed to activate your Xfinity internet service, the last phase is about connecting all the available devices in your household. Open the device, go to the Wi-Fi settings, scan for your Wi-Fi network name, and connect to it. Feed-in your password and you are good to go.

More Guidance Related to Self-Installation

You are now up and ready with your very own Xfinity internet service. In case, you need to know more about the installation process and want to speak to a representative, chat online from Monday – Friday between 11:00 AM & 10:00 PM ET.

To Sum It Up

There you have it! If you reached the final stage without any hassle, despite having to go through multiple steps, you have been successful at setting up your new Xfinity internet connection without professional assistance or spending extra.

You can take a look at Xfinity TV and Xfinity bundle deals to find more about what Xfinity has to offer.


1. Can I install Xfinity Internet by myself?

Yes, you can install Xfinity Internet by yourself, but first, you need to order the Xfinity Self-Install Kit. Once done, you need to find a central spot for your Xfinity Gateway, and start connecting the Gateway. Now before activation, your Gateway needs to be powered up.

2. How do I activate my Xfinity Internet?

To activate your Xfinity Internet, you need to establish a temporary internet connection first, which would be utilizing an Ethernet cable. Then, begin activating your Gateway by choosing a browser and going to com/activate, and at last, connect your device to the new internet connection.

3. What if I get stuck during the self-installation process?

You never have to worry about being left alone as long as you have Xfinity customer representatives by your side. You can either speak or chat with them online from Monday – Friday between 11:00 AM & 10:00 PM ET.

More About Xfinity

For more information, call Xfinity customer service at 844-207-8721.