How to Fix Your Mediacom Internet Connection

By Maya Austen

The telecommunications company Mediacom provides digital phone, cable TV and high-speed Internet service to more than 1,500 communities across the United States, including parts of Arizona, Indiana, Illinois, Iowa and California. If you are a Mediacom high-speed Internet subscriber, the first step to fixing your Mediacom Internet connection is to set up the modem. If your modem is set up and you still are experiencing a problem with your Internet service, you can do some of your own troubleshooting.

Set Up the Modem

Step 1

Connect the coaxial cable coming from the cable wall outlet, installed by the Mediacom installer, to the modem's RF connector. Twist the cable's screw-on connector clockwise to make sure that it is firmly secured to the connector.

Step 2

Push one end of the Ethernet cable into the modem's Ethernet jack. Or, if you opt for a USB connection, push one end of the USB cable into the modem's USB jack. Make sure the plug is fully inserted.

Step 3

Plug the other end of the Ethernet or USB cable into the computer's Ethernet or USB jack. Make sure the plug is fully inserted into the jack.

Step 4

Connect the modem's power adapter to the modem's "DC" power jack. Plug the adapter power cable into an electrical outlet.

Troubleshoot Internet Access

Step 1

Enter a different website URL in your browser's address bar. For example, if your Web browser is set up to open to your favorite blog but an error message appears stating that the page is unavailable, try going to the Mediacomtoday home page. If the website you are visiting is temporarily offline there may not actually be a problem with your Internet service. The problem could be with website's server.

Step 2

Verify the modem is hooked up properly and each cable is secure in its respective jack. Also, according to the "High-Speed Internet Troubleshooting" tips published on the Mediacom website, if you have a router, gateway, or any other device between your modem and computer, you should disconnect this device and set up your Internet connection as outlined in the previous section. Test your Internet connection again by closing and re-opening your browser. If this resolves the issue you can conclude that connection problem had something to do with how the router or gateway was set up or the hardware itself.

Step 3

Power cycle the modem by unplugging the modem's power cable for a minimum of 10 seconds, then plug it back in. Test your Internet connection.

Step 4

Check the coaxial cable, and the Ethernet or USB cable for damage. Replace them if they are damaged. Test your Internet connection.

Step 5

Reset the browser's Internet options. In Internet Explorer, for example, this is accomplished by selecting "Internet Options" from the "Tools" menu. Go to the "Advanced" tab. Click "Restore Defaults." Close the browser, then open it again.

Tips & Warnings

  • If you are unable to resolve the issue you are having with your Internet connection on your own. Use another computer, not already connected to your Mediacom Internet service, or a cell phone with browser capabilities to access the Mediacomtoday home page. Enter your zip code in the "Maintenance Alert" box to see if there are any Mediacom outages in your area. If there aren't any, contact Mediacom customer support for assistance. Arizona, California, Illinois, Indiana, Iowa, Minnesota, Missouri, Ohio and Wisconsin Mediacom customers call 1-877-387-8087. For all other areas, call 866-452-4747.