If you are a CenturyLink user you must have noticed the different colors of the modem. Depending on the activity and the status of your connection and the network this LED light will change its color and act differently. It can be solid color or it can blink. It can also change its color from blue, to green, amber or red light on your CenturyLink modem. Understanding what each light color and behavior means can tell us more about what’s going on at the moment.
One such situation is the blinking blue light on the CenturyLink modem. In this article we are going to tell you more about its meaning and the steps you can take in order to fix the CenturyLink modem issue.

CenturyLink Modem Blinking Blue: Meaning
While booting up, it is normal to see the blue blinking light on your CenturyLink modem. It means that it is searching for the network. Once it connects it should turn solid blue.
However, the problem occurs when the modem blinks blue longer than usual. For example, if the LED ring light continues to blink blue even after 10 minutes it is a signal that there is a problem that needs to be fixed.
So, let’s start troubleshooting!
How to Fix The CenturyLink Modem Blinking Blue Light?
Below you will find the tips and solutions that have helped many users fix the modem blinking blue issue. Just take your time and go one step at a time.
Check The DSL Cable
The first thing to do when you notice your CenturyLink modem blinking blue is to check the green DSL cable (if you are using this type of connection). Check both ends of this cable and make sure it is firmly connected to the modem and the wall jack as well. You can try to pull it gently and if it disconnects then this was most likely the problem. Plug it back in firmly.

Try Another Wall Jack
Maybe the wall jack you are using isn’t the active one. If you have other wall jacks in your house try connecting the modem there and see whether something changes.
Restart The Modem
This quick and super effective solution is generally the first one we recommend. It is simple and anyone can do it. On top of everything, in most cases, it will fix the problem.
- Disconnect the modem from the power source.
- Leave it without power for 1-2 minutes.
- Connect it back to the power source and turn it on.
- When it boots up the blue light should stop blinking.
However, if it continues to blink after 5 or 10 minutes, try the following.
Service Outage
During a service outage, your modem can receive no signal at all or the signal it receives is too weak. This often happens when the ISP is working on their network when they are experiencing a power outage, technical difficulties, and similar.
To check whether this is the reason for the blue blinking light on your CenturyLink modem the best would be to get in touch with support or visit their Troubleshooter and outage information page.
If you are affected by an Area outage you can choose to receive a notification when the issue is resolved. On the other hand, if the outage is just in your area then the Troubleshooter can check your line and you will have the option to generate a repair ticket.

If you choose to use the Troubleshooter make sure to prepare your ZIP code, your account number or billing phone number.
Is Your Service Suspended?
Yes, that can happen if you haven’t paid your service bill in time. Login to your CenturyLink account and check whether this is the problem. If it is, everything will be fixed once you pay the bill. On the other hand, if it has been paid, then you have to investigate further. So, try the following.
Contact Support
To be honest, we were pretty sure you will fix the problem by now. However, if you have tried all the suggestions we have provided and the problem is still there it is time to contact support. You can get in touch via email or live chat or just call them. When you do that, make sure to explain what the problem is. If they can help you fix the issue after they test your connection, it’s great. On the other hand, if they can’t fix it remotely, they can send a tech guy to check what’s going on.
Recommended reading:
- Can I Use My Own Router with CenturyLink?
- CenturyLink Wi-Fi Not Working – Causes and Solutions
- How to Make CenturyLink Internet Faster?
Final Words
The blue blinking light on your CenturyLink modem is definitely something we don’t want to see very often. Our lifestyle today is busy and we use the Internet more and more every single day. And if our modem can’t connect to the ISP network it means no internet for us. Yes, it can be pretty stressful, but there are also some things you can do to deal with it.
Don’t be afraid to try and fix the CenturyLink modem blinking blue on your own. However, if you feel uneasy, then either consult someone with more experience or get in touch with the support. We are sure your internet connection will work flawlessly very soon.

Hey, I’m David. I’ve been working as a wireless network engineer and a network administrator for 15 years. During my studies, I also worked as an ISP field technician – that’s when I met Jeremy.
I hold a bachelor’s degree in network engineering and a master’s degree in computer science and engineering. I’m also a Cisco-certified service provider.
In my professional career, I worked for router/modem manufacturers and internet providers. I like to think that I’m good at explaining network-related issues in simple terms. That’s exactly what I’m doing on this website – I’m making simple and easy-to-follow guides on how to install, set up, and troubleshoot your networking hardware. I also review new network equipment – modems, gateways, switches, routers, extenders, mesh systems, cables, etc.
My goal is to help regular users with their everyday network issues, educate them, and make them less scared of their equipment. In my articles, you can find tips on what to look for when buying new networking hardware, and how to adjust your network settings to get the most out of your wi-fi.
Since my work is closely related to computers, servers, and other network equipment, I like to spend most of my spare time outdoors. When I want to blow off some steam, I like to ride my bike. I also love hiking and swimming. When I need to calm down and clear my mind, my go-to activity is fishing.