Support XFINITY Internet Improve Your Wireless Home Network's Speed


Once you have wireless networking in your home, you’ll want to make sure you’re getting the most out of your connection. Older equipment and poor network configuration can slow down the speed of your wireless connection, which means slower downloads, lagging in online games and streaming video, and slower overall Internet performance.

Here are a few common ways to optimize your wireless network speed.

Wireless Gateway Placement

The placement and location of your wireless gateway can affect the signal and speed of your connection. For best Wi-Fi coverage, ensure your wireless gateway is elevated (off of the floor) and in an upright position. Place your wireless gateway in an area where you’ll most commonly use your Wi-Fi devices. In general, an open space is better than a crowded space.

Minimize Interference

For the best Wi-Fi reception and the least interference from nearby wireless networks, place your wireless gateway in an open area, away from:

  • Walls
  • Furniture
  • Metal surfaces (including computer cases)
  • Halogen/fluorescent lighting
  • Microwaves and refrigerators
  • TVs and computer monitors
  • Cordless phones (excluding DECT or 900MHz models)
  • Fax machines
  • Baby monitors
  • Large amounts of water (like aquariums and water heaters)

Keep in mind that the Wi-Fi client devices you use play as important a role as the wireless gateway when it comes to range and speed issues. In addition, crowded neighborhoods, such as apartments and row houses may affect your speeds, especially during peak hours.

To find out more about wireless networking, please see What is WiFi? to find out what Wi-Fi is and how it works.

For information on home networking and how to set up a home network, see What is Home Networking? For information on how to troubleshoot your signal, including how to best position your router, see Troubleshooting Your Wireless Network Signal.

Upgrading Your Modem

Comcast provides several levels of Internet service, such as Performance, Blast! and Extreme. You can find your level of service on your billing statement. To learn more about the speed of your Wi-Fi network, take the Speed Test from XFINITY.

Because some older modems can’t adequately support higher levels of Internet service, you may still be accessing the internet at slower speeds, even if you’ve upgraded your plan. If that’s the case, you’ll want to upgrade your modem to make sure you’re getting the fastest network speeds possible. You can find a list of Comcast-approved modems and their specifications at the DOCSIS Device Information Center.

You will want to make sure your device is compatible with your Comcast service level. You may need to upgrade to a DOCSIS 3.0 device. If you’re a customer who is leasing a modem from Comcast, you can upgrade your modem free of charge. To find out more about upgrading your equipment, see Upgrade Your Wireless Network Equipment.

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