Setting up a DSL modem is a simple process basically requiring three connections. You need to connect the modem to the phone line, a power source and your computer. The connection between the modem and the computer requires an Ethernet cable, which is usually included with your modem. If you don't have an Ethernet cable, one can be purchased in varying lengths at most electronics supply stores.
Locate the Ethernet port on the back of your modem. It will look similar to a regular telephone cable jack but will be slightly larger.
Plug either end of the Ethernet cable into the jack on the back of your modem. Push the modular connector (plug end) into the port until you hear or feel a click.
Find an Ethernet port on your computer. Most desktop units have them on the back of the computer, whereas laptops usually have them on one of the sides. Plug the other end of the Ethernet cable into an available port until you hear a click.
Turn on the computer and power up the modem. Many modems have an LED indicator light to let you know it is properly connected to your computer. If your modem doesn't have such a light, try accessing the Internet once you've made the other proper connections to see if the modem is connected to your computer.
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