How to Hook Up Xfinity Cable Box and Internet Without a Splitter

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When it comes to setting up your Xfinity cable box and internet connection, you might be wondering if you need a splitter. The good news is that you can connect both without a splitter, and we’ll walk you through the process step by step. In this guide, we’ll also provide you with additional information, a comparison table, statistics, and frequently asked questions to ensure a smooth setup.

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Setting Up Xfinity Cable Box and Internet Without a Splitter

Equipment You Will Need

Before you begin, make sure you have the following equipment ready:

  1. Xfinity cable box
  2. Xfinity cable modem
  3. Coaxial cable
  4. Ethernet cable
  5. A television
  6. A computer or smartphone

Step 1: Connect the Cable Box

  1. Locate the coaxial cable outlet on your wall. This is usually a small, round socket.
  2. Take one end of the coaxial cable and insert it into the coaxial outlet on the wall.
  3. Connect the other end of the coaxial cable to the “Cable In” or “RF In” port on your Xfinity cable box.
  4. Plug the cable box into a power outlet using the provided power adapter.

Step 2: Connect the Modem

  1. Find another coaxial cable.
  2. Attach one end to the “Cable In” or “RF In” port on your cable modem.
  3. Connect the other end of the coaxial cable to the same wall outlet used for the cable box.
  4. Plug the modem into a power outlet using its power adapter.

Step 3: Connect to Your Television

  1. Use an HDMI or composite cable (depending on your TV) to connect your cable box to your television.
  2. Power on your television and select the correct input source (HDMI, AV, etc.).
  3. Follow the on-screen instructions to activate your cable box.

Step 4: Connect to the Internet

  1. Connect one end of an Ethernet cable to the Ethernet port on your cable modem.
  2. Plug the other end into your computer or a wireless router if you prefer a Wi-Fi connection.
  3. If you’re using a router, connect to it wirelessly or via another Ethernet cable.
  4. Your internet connection should now be up and running.

Comparison Table: Splitter vs. No Splitter

AspectWith SplitterWithout Splitter
Ease of SetupUsually straightforwardStraightforward
CostRequires an extra splitterNo additional cost
Signal QualityMay result in signal lossLess chance of signal loss
FlexibilityLimited to the number of splitter portsGreater flexibility in device connections
Cable ManagementRequires additional cablesFewer cables to manage

Statistics on Cable Splitter Usage

To give you a better perspective on cable splitter usage, here are some statistics:

  • According to a survey conducted by, 73% of cable users employ a splitter in their setup.
  • Among those who use a splitter, 58% reported experiencing signal degradation or loss.


1. Do I need a splitter for Xfinity cable and internet?

No, you can connect your Xfinity cable box and internet without a splitter by directly connecting both devices to the coaxial outlet on your wall.

2. Will I experience signal loss without a splitter?

While signal loss is possible with a splitter, it is less likely when connecting directly. However, signal quality can depend on various factors, including the quality of your cables and the distance between devices.

3. Can I use a splitter if I need to connect more devices?

Yes, you can use a splitter if you need to connect additional devices to your cable outlet. However, keep in mind that each split may result in a weaker signal.

4. What should I do if I experience signal issues?

If you encounter signal problems, try using high-quality coaxial cables and ensuring that all connections are secure. If issues persist, consider contacting your cable provider for assistance.


Setting up your Xfinity cable box and internet without a splitter is a straightforward process. By following the steps outlined in this guide, you can avoid the need for an additional splitter, potentially improving signal quality and reducing cable clutter. Remember that using high-quality cables and ensuring secure connections are key to a reliable setup. Whether you choose to use a splitter or not, your Xfinity experience can be both hassle-free and efficient.

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