Xfinity Router Blinking White Light [Try this Solution FIRST]

Marc Ray

by Marc Ray

Last Updated on

Xfinity Router blinking White Light

Since I’ve been using Xfinity Internet for so long, I’ve discovered that their router—which has many features—is the greatest. The router’s LEDs show the network’s status all the time.

Usually, these lights either flicker or remain steady, but what makes them unique is the variety of hues, each of which stands for a different condition.

Recently I found my Xfinity router blinking white light, which is not normal. Firstly, I couldn’t understand why it was doing it, but after some research, I figured it out.

Last time when my Xfinity router was blinking red, I figured it out quickly, but this time it wasn’t that easy.

So, I ended up researching for hours, going through their manual, discussing with other users on the forums, and continuously talking to Xfinity Support.

After researching, I finally understood what the white blinking light on Xfinity modem was and how to solve it.

Why is my Xfinity Router Blinking White?

According to Xfinity User Manual on their website, “The solid white light on their router/modem indicates a stable internet connection, though a blinking white light indications unstable connection.”

Xfinity Router blinking White Light

If there is a stable white light on your Xfinity router, that is a good sign! It shows that your internet is working perfectly and is fully operational.

But if, for some reason, the Xfinity router is showing a blinking white light, it represents an unstable connection and continuous downtime.

The white LED light has a little purple tint in the new XFi models.

Some external issues can cause the blinking white light, like the fiber optics can be damaged, or you may haven’t activated your Xfinity Router.

Sometimes the ethernet cables are not correctly installed, or your router hardware might have malfunctioned.

Several symptoms cause the white LED to blink. Let’s discuss the troubleshoots thoroughly.

How to Fix Blinking White Light on Xfinity Router?

As the symptoms are countless, so does the solutions.

You may never know what is causing the white blinking light on your Xfinity modem, so you might have to try more than one solution until it gets fixed.

1. Activating Xfinity Router

Activating Xfinity Router

You must first activate your freshly purchased Xfinity router before using it.

Follow these steps:

  1. Download the Xfinity app on your smartphone. The Xfinity app is available on both Google Store for Android and the app store for iPhone.
  2. Once the app is installed, log in with your Xfinity ID and password. (If you do not have your credentials, you can always sign up for a new one)
  3. Scan the QR code found on the bottom of your Xfinity modem, and if you cannot scan the code, enter the 12-digit code manually, which is also mentioned there.
  4. Follow all the steps mentioned in the Xfinity app to place the router in the best location and connect the cables.
  5. The app will guide you till you power up your modem.
  6. After the router is powered on, select your SSID name and password for your wireless network.

Let the app complete the process, and once it is done, you will be provided with your Wi-Fi name and password.

Your Xfinity router is activated now, and the blinking white light might have been fixed by now.

If the blinking white light on the Xfinity modem has turned solid, but the internet connection is still unstable even after activating the router, follow the troubleshoots listed below.

2. Restart Xfinity Router

Restart Xfinity Router

A typical router issue can be fixed easily by restarting it.

Restarting your router will stop all the processes and bring the device to a blank state.

To restart your router, follow the steps below:

  1. Login to your Xfinity mobile app.
  2. Tap on your modem.
  3. Select “Restart this device.”

This process will restart your device in 1-2 minutes.

However, you can do it manually if you don’t have the Xfinity mobile app.

Just unplug your router, leave it unplugged for 30 seconds, and then plug it back in.

If your internet is stable now, well and good; if not, continue troubleshooting.

3. Check your Ethernet Cables

Check your Ethernet Cables

Rarely, the white blinking light on your Xfinity modem may also be caused by ethernet cables or the primary fiber optics.

Ensure the ethernet connections are installed correctly within the router since they frequently lose their hold while cleaning, relocating the router, or installing new equipment.

Make sure the fiber optics is straight; bents are a nightmare for this sophisticated wire. Minor bends give them the potential to shatter from the inside.

Replace any Ethernet cables that have frayed or peeling insulation with new ones.

4. Factory Resetting Xfinity Router

Factory Resetting Xfinity Router


Proceed with caution and make sure you have your network details, such as password, network address, and all other login details, written down since factory resetting your modem/router will wipe all of the customized network settings.

  1. Get a pin or a sim ejector tool since hitting the reset button with your fingers is problematic because it is located deep inside a hole.
  2. Place the pin inside the hole and then push and hold the reset button for 10 seconds. (When the button is pressed, a clicking sound will be audible.)
  3. The modem will restart with all of the factory settings.

You must go in and change the network settings you have recorded.

5. Contact Xfinity Customer Support

Contact Xfinity Customer Support

If none of these methods work for you, you must contact Xfinity Customer Care via email or call.

You can live chat with them on their website or call them at 1-800-XFINITY.

NOTE: While talking to their customer support, mention all the troubleshoots you tried so they don’t ask you to go with these solutions again.

Last Thoughts on Xfinity Modem Blinking White

Thus, the white light on your Xfinity router informs you of your connection.

If it is solid white, you have nothing to worry about, and your router is perfectly operational.

However, if the white light is flashing, it signifies a network issue, and you will need to consider some of the options mentioned above.

This case is 100% different than an Xfinity router blinking orange.

Related Content

Frequently Asked Questions (FAQs)

Why is my Xfinity Router showing a White Light?

If the Xfinity router’s white light is consistently on, you have a good internet connection. But if it flashes, it means your connection is unreliable, and you’re experiencing constant downtime.

What does a blinking white light on my Xfinity Router mean?

Your internet connection may be unstable if the white light on your Xfinity Router is flashing, or there may be an external problem causing the issue, such as a broken fiber optic cable, improperly installed ethernet cables, or a faulty router.

How do I fix my Xfinity Router blinking White?

If the white light on your Xfinity Router keeps flashing, the problem may lie in the router’s lack of activation. If the issue remains after you’ve restarted the router, checked for and fixed any external problems, and tried any troubleshooting steps advised in the Xfinity user handbook, please get in touch with Xfinity Support so they can further investigate.

Can I activate my Xfinity Router using the Xfinity app?

If you have an Xfinity Router, you may use the Xfinity app to set it up. You can activate your router by downloading the app, which is available for Android and iOS devices. The software will walk you through the setup procedure, from finding the optimal spot for the router to plugging in the connections.

What should I do if the white LED light on my Xfinity Router has a purple tint?

The white LED light on the latest XFi variants of the Xfinity Router has a slight purple tint. This is expected behavior and shouldn’t affect the router’s performance. If you’re having problems, check out the Xfinity help section of the user handbook.

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About the author

Marc Ray

Marc Ray

Marc Ray, Founder of A tech enthusiast & expert in smart home technology, helping homeowners upgrade their homes with the latest smart home security & automation solutions. Marc has over 10 years of experience in smart home technology. He holds a certification in Home Automation Systems and has been featured in Hubspot. You can learn more about Marc and his work. Read his Book, Smart Home Hacks!

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