CenturyLink Modem Internet Light Flashing Red And Green [4 Easy Fix Methods]

When you sign up for CenturyLink, you will notice that you receive a modem that has been designed specifically for the service by the company. This is not necessarily a bad thing.

Despite the fact that you are currently experiencing issues with the modem, its overall performance is quite good. It’s dependable, simple to set up and use, and generally lasts a few years – without causing frequent problems with your internet connection.

However, because your internet connection is made up of multiple components, it can be difficult to pinpoint exactly what is wrong when something goes wrong. This is exactly the case with the internet light flashing red and green problem you’re experiencing right now. This problem could be caused by a number of different factors.

In fact, every now and then, the problem has nothing to do with the modem! Flashing lights are rarely, if ever, good news, so you’ll want to get rid of them as soon as possible.

Ways To Fix CenturyLink Modem Internet Light Flashing Red And Green
Ways To Fix CenturyLink Modem Internet Light Flashing Red And Green

As a CenturyLink customer, you’ve probably noticed that when you connect the modem to the internet, the internet light flashes green. After a while, this light will turn solid green, indicating that you have established a connection to the internet and are free to use it as you see fit.

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However, instead of a solid green light, you may occasionally see a flashing red and green light in its place. This does not necessarily imply that something catastrophically bad has occurred.

It simply means that your modem is having difficulty connecting to the internet. As you can see, this isn’t a major issue that can’t be resolved in a matter of minutes. On the other hand, receiving a solid red light indicates that there is a serious problem with the modem itself.

Flashing red and green indicates that your modem is attempting to receive a signal and may be receiving a small amount, but not enough to establish a secure connection. So, to resolve this issue, simply follow the simple steps outlined below.

Let’s take a look at what the various colors of internet lights on your modem mean. The internet light will be off if the modem has not been set up or configured with credentials, or if it is in transparent bridging mode.

  • Green Light: When the power and DSL lights turn solid green, the modem will connect to the internet. When the internet is available, the light will turn GREEN. When your modem is sending data to and from the internet, the internet light will flash green.
  • The internet connection light (orange/amber) indicates that the modem has not yet been activated. To do so, connect your modem to your computer and launch a web browser, which will take you to CenturyLink’s activation page.
  • If the connection is not being verified, the internet light will turn red, indicating that the login and password were not accepted by the network.
CenturyLink Light Blinking Red And Green
CenturyLink Light Blinking Red And Green


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We have decided to prioritize the following solutions based on the time required to complete them rather than their efficiency. So, let’s begin with the one that will require the least amount of your time.

1. Restart the Router

We’re sure you’ve noticed that whenever one of your devices becomes faulty, rebooting it usually solves the problem. The same thing happens with your router.

Many users have confirmed that rebooting the router resolved the red and green blinking light issue. The steps required to complete this correctly are fairly simple and straightforward.

  1. Remove the router from the power supply.
  2. Allow at least 60 seconds.
  3. Replace the CenturyLink router’s plug.
  4. Wait for the router to completely boot up.

2. Check If There Is A Service Outage In Your Area

CenturyLink has a Service Troubleshooter and outage information page that is quite useful. This can assist you in determining what is causing the current issue or determining whether there is a service outage in your area. Your account number and ZIP code are all that is required.

If your Internet connection is unavailable, use your cell phone to access Downdetector.com. It can tell you if there is an issue with your internet service. Simply enter “centurylink.” If there is a service outage, you will have to wait until the problem is resolved. If not, proceed to the next step.

3. Try Resetting The Modem

This step works in the same way as the previous one, but in a more forceful manner. So, if the previous tip didn’t work, this one is likely to. Unfortunately, there is a trade-off that must be considered before proceeding.

When you reset a modem, you are essentially restoring it to the state it was in when it was shipped from the factory. This is great for resolving performance issues, but it means that any changes you’ve made will be lost.

As a result, some setup procedures will be required after you complete this. Now that you’re aware of the disadvantage, let’s look at how it’s done.

The first method is to access the modem’s admin panel via your computer and proceed from there. Alternatively, you can simply press the reset button (if your modem has one) or press and hold the power button until the reset is initiated.

CenturyLink Modem Blinking Red And Light
CenturyLink Modem Blinking Red And Light

4. Examine The Cables And Connections

If neither of the preceding two suggestions has helped, there is a good chance that the issue is with your hardware rather than your software. On occasion, something as simple as a frayed cable or a loose connection can cause the entire breakdown of your connection.

So, to begin this section of troubleshooting, make sure that the telephone cable plugged into your modem is as tightly as possible. You should also ensure that there is no damage to the cable itself.

In addition, if you’re using splitters, make sure they’re properly connected as well. If you notice any suspicious-looking cables, replace them right away and try your connection again.

5. Network Not Activated

Maybe you’ve just become a customer of theirs, or maybe your plans have changed. In that case, there’s a good chance your network hasn’t yet been activated.

In this case, you can either contact support and ask them if that is the problem, or you can wait until tomorrow to see what happens. If this is the case, the green and red lights will cease to blink once your network is activated.

6. Contact Customer Service

Unfortunately, the fixes listed above are the only ones that can be performed without a certain level of expertise. At this point, rather than acting rashly and jeopardizing the integrity of your modem, the only logical course of action is to contact customer support.

While you’re on the phone with them, tell them what you’ve tried so far so they can narrow down the source of the problem as quickly as possible. In terms of customer support, we would give CenturyLink high marks for their ability to analyze and repair problems like these in a relatively short period of time.


When the router’s power lead blinks, it indicates that there is a problem with the router. Attempt to reset the router. Hold down the reset button on the router’s back for 30 seconds. Then, unplug the power cord for 10 seconds before plugging it back in.

Modem Red Light And Green Light
Modem Red Light And Green Light


We hope this article has assisted you in resolving the CenturyLink Router Blinking Red and Green problem on your own. As you can see from the solutions provided above, you don’t need any prior experience to fix it yourself.

Fortunately, the same holds true for resolving a variety of other networking issues you may encounter in the future. As a result, before contacting customer service, try to resolve the issue on your own.

Frequently Asked Questions

Why is my internet light flashing green?

This indicates that the hub is powered on, but it is not receiving Wi-Fi signals. If you’re not sure why this is happening, it’s most likely due to a faulty connection in your home. Always keep your white cable firmly plugged into the hub and socket.

Why is my CenturyLink Internet light blinking red and green?

When the internet configuration is auto-detected, the internet light will BLINK RED and GREEN. If this happens for more than a minute, you should contact technical support to have your internet translated. If the modem still needs to be activated, the internet light will be solid AMBER/ORANGE.

How do I fix flashing red and green light?

Many users have confirmed that rebooting the router resolved the red and green blinking light issue. The steps required to complete this correctly are fairly simple and straightforward. Remove the router from the power supply. Allow at least 60 seconds.

Why is my CenturyLink router Internet blinking red?

At the moment, not all CenturyLink modems support WPS with a button. When a connection is established, the WPS button turns green. Red is blinking. When a connection fails or a session overlap is detected, the WPS button will blink red.

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I'm a tech writer and editor. I love technology. I'm excited about networking and streaming. I'm always looking for new and exciting ways to use technology. I believe technology can be a force for good in the world, and I strive to use it in my work.

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