How to Connect Comcast Internet Cables to My Computer

by Michael Signal

Comcast provides high-speed Internet access in addition to cable programming. But your computer doesn't connect to a cable converter box. Users require a special cable modem to access Comcast cable Internet service. Comcast will lease modems to its customers, or customers can choose to buy their own modems. Comcast technicians can install the modem, or customers can self-install them. The process is slightly different when also installing a router that allows multiple computers to access Comcast cable Internet.

Single Computer

Coax cable goes straight from the wall jack to the cable modem.

Connect the coax cable from the wall to the cable modem.

Turn off and unplug the computer.

Connect the cable modem's power supply to the modem and plug it into an electrical outlet. Turn on the modem if it has a power button.

An Ethernet cable connects the computer to the modem.

Plug one end of an Ethernet cable into the computer's NIC (network interface card) port.

Plug the other end of the Ethernet cable into the cable modem.

Plug in the computer's power cable and turn on the computer.

Network With Router

Connect the coax cable from the wall to the cable modem.

Turn off and unplug the computer.

You can also connect your cable modem to a router.

Connect an Ethernet cable from the link port of the router to the cable modem.

Connect another Ethernet cable from an open port on the router to the computer's NIC card. The router documentation will describe which port to use.

Turn on the cable modem and wait 90 seconds.

Turn on the router and wait 90 seconds.

Plug in and turn on the computer.

Items you will need

  • Comcast compatible cable modem
  • Coax cable
  • Ethernet cable

About the Author

Michael Signal began writing professionally in 2010, with his work appearing on eHow. He has expert knowledge in aviation, computer hardware and software, elementary education and interpersonal communication. He has been an aircraft mechanic, business-to-business salesman and teacher. He holds a master's degree in education from Lesley University.

Photo Credits

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