Internet Service Partners Authorized CenturyLink Sales Agent

Modem and Router Flickering Lights

Your modem and router have several lights in different colors that indicate different things. As you set up your modem, check that the following lights are on and flashing the right color. The lights below are listed in the order they appear on your modem, from left to right.

Power Light

The power light indicates that your modem is plugged in and working. If the modem is on, the light should flash green.

  • If the power light is red, the modem is self-testing its hardware. If the light stays red for a minute or longer, the modem has a problem.
  • If the power light is amber or flashes between amber and green, the modem is self-testing its software. If the light stays amber for a minute or longer, the modem has a problem.

DSL Light

DSL stands for Digital Subscriber Line, which is the type of internet CenturyLink offers. When the DSL light is solid green, it indicates that the modem has established a connection between your internet service provider and your home.

  • If the DSL light is red, it can’t connect with CenturyLink. When you plug in or set up your modem, the light shouldn’t stay red for more than 30 seconds. If the red light persists, the modem has a problem.
  • If the DSL light is slowly flickering green, it’s still searching for the CenturyLink DSL connection. If the light flickers slowly for more than five minutes, the modem has a problem.
  • If the DSL light is rapidly flickering green, the modem has found a connection with your internet service provider but isn’t yet able to connect. If the light flickers quickly for more than five minutes, the modem has a problem.

Internet Light

Once the modem is connected to a power source and the CenturyLink network, it will attempt to connect to the internet. If it does, the internet light should turn solid green.

  • If the light is flickering red and green, your modem can’t communicate with the internet.
  • If the light is amber, your modem is using the Point-to-Point (PPP) credentials provided by CenturyLink, which means you can’t connect to the internet without visiting the CenturyLink activation and installation page.
  • If the light is red, CenturyLink isn’t accepting the PPP credentials linked to the modem.

Ethernet Light

The Ethernet light will turn green if you’ve connected a web-enabled device, such as a computer or smart TV, to the modem using an Ethernet cable.

Wi-Fi Light

The Wi-Fi light turns green as soon as your modem establishes a solid wireless internet connection.

WPS Light

The WPS (Wi-Fi Protected Setup) light indicates that you can easily and securely connect a wireless, web-enabled device to your modem. When the light is green, pressing it lets you connect your WPS device to the modem without using the modem’s passkey or SSID.

  • If the light is red, there is a problem with your WPS connection. If the light stays red for more than 30 seconds, your modem has a problem.
  • If the light is amber, the modem is attempting to connect with your WPS device. The light should turn green and the device connect after two minutes. If it doesn’t, your modem has a problem.

Can’t Find What You’re Looking For?

Don’t worry—just ask a representative over the phone!

Call 1-855-423-8741 Visit the contact page for more numbers
Email Icon

Get the Latest Offers via Email

Thank you for your interest in CenturyLink

An email will be sent to you shortly