How to Self Install Your New CenturyLink Internet

Monique Serbu

There’s no need to wait for an appointment with a technician to set up your new CenturyLink Internet service. With the self-install kit from CenturyLink, you can get your Internet service up and running all on your own. Here is everything you need to know to get connected and get online.

Understanding Your Equipment

First things first, make sure you have all the necessary equipment and understand its purpose.

CenturyLink Modem

Your modem enables your computer to receive and transmit data over the Internet. Most CenturyLink modems also come with built-in routers, which provide more Internet security and allow you to have a wireless network. Your modem is usually a small, rectangular box with buttons and lights on the front. On the back, it has several ports where you can insert the cables that connect the modem to your computer and phone lines. The modem comes with an AC power adapter that will also plug into one of the modem’s ports.

Cables and Cords

Your kit will come with a yellow Ethernet cable and a green telephone cord. These connect the modem to your computer and phone line.

DSL Filters

DSL filters split the signal between your data line — which provides your Internet service — and your phone line. These filters allow you to use the phone and the Internet simultaneously without disruption or interference. The filters are typically short, off-white cords.

Setting Everything Up

After you’ve checked your equipment, it’s time to power up your computer and get started. Follow the steps outlined below to connect to your CenturyLink Internet.

Step 1: Install Your DSL Filters

Connect a DSL filter to each phone jack in use to ensure you have the fastest connection speeds and to avoid interference between your devices. If you need more filters, you can contact CenturyLink to purchase them.


Step 2: Power Up Your Modem

Place your modem in a central, high, well-ventilated location. Connect the AC power adapter to the back of your modem. If your modem includes a power switch, turn the switch to ON. If there is no power switch, it will automatically turn on when you plug the AC power adapter into an outlet. It will take a few minutes for the modem to boot up. When it is ready to go, the power indicator on the front of the modem will light up.

Step 3: Connect Your Phone Cord

Locate the green port on the back of your modem labeled either DSL or LINE — it is not the port labeled PHONE. Plug one end of the green telephone cord into the port and the other end into a phone jack. Do not use a DSL filter with this cord — it already has one built in, and installing another filter can interfere with your connection. The cord will click when it’s fully in place.

Step 4: Connect Your Ethernet Cable

Connect the yellow Ethernet cable to any of the yellow ports on the back of your modem. Plug one end of the cable into the modem and the other end into a port on your computer. Your computer’s port will look similar to a phone jack. If you’ve made the right connection, the Ethernet port lights on your computer will illuminate.


Step 5: Check Your Connections

Make sure everything is ready by double-checking that all cords are properly plugged in and that the lights on the front of the modem are on. All lights should be a solid green, except for the Internet light, which may be flashing.

Step 6: Activate Your Service

To connect to the Internet, make sure your computer is connected to your modem and open a web browser. You should see the CenturyLink welcome screen. Click the green NEXT button and follow the steps to activate your CenturyLink Internet. The process should take about 15 minutes. To set up a wireless network, refer to the CenturyLink wireless guide.

If you have any questions or need further assistance installing your modem, you can call the CenturyLink 24/7 Technical Support at 1-877-348-9005.

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