Support XFINITY Internet Improve Your Wireless Home Network


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.

Router Placement

The placement of your router, or your Wireless Gateway 1 (model number TG852G, TG862G, SMCD3DNV or TC8305C) or Wireless Gateway 2 (model number DPC3939), can affect the signal and speed of your connection. Find out how to best position your router or learn more about setting up your home network.

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.

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.

If you’re a customer who is leasing a modem from Comcast, you can upgrade your modem free of charge. Find out more about upgrading your equipment.

Optimizing Your Connection

In order to get the most from your home network, you’ll want to make sure that your connection has the best configuration possible. Most recent operating systems, like Mac OS X and Windows 8, are preset with optimized settings for a home network connection.

Customers using Windows XP, an older operating system, can download the Comcast TCP Optimizer to enhance their network settings and make sure their connections are as good as they can be.

Get the Comcast TCP Optimizer on your computer. Follow the prompts to install the tool, and remember that you’ll need to restart your computer to complete the installation.


PowerBoost is a free Comcast network technology that enables you to experience faster connection speeds while performing large file uploads or downloads.

To enjoy the benefits of PowerBoost, your modem must be DOCSIS 1.1 or above. To check the DOCSIS level of your modem, refer to the DOCSIS Device Information Center

PowerBoost gets the boost in its name by temporarily pulling additional capacity from the Comcast network to help you complete large file transfers, such as downloading music, video or games. PowerBoost will normally be in effect for the first 10 MB of a large download and the first five MB of a large upload. After the PowerBoost is over, your transfers will continue at regular speeds if they are not already completed.

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