AT&T Broadband Red Light Flashing (3 Ways To Fix)

at&t broadband light flashing red
at&t broadband light flashing red

Slowdowns in the internet connection and entire outages are the worst things to experience while you are browsing all focused on your PC. Mostly when you experience such downturns, you check out your router or modem. What you see is a flashing red light flickering full solid. What does it mean, though? It means you are out of internet connections. Red globe or red flashing light on the AT&T modem is these days the most common thing to experience. What causes your AT&T broadband to appear a red flashing light? Well, there are several factors for it.

Mostly when your area is going through bad weather conditions i.e. thunderstorm, the outages are most common to occur. However, if there is nothing wrong with the weather, then there are chances that your connection is too loose to sustain a good internet connection and thus the maintenance of bright white light instead of red.

What Is AT&T?

AT&T is an American conglomerate company that offers internet data plans and AT&T devices all over the USA. Along with providing the best services, AT&T has several strategies and discounts for its valuable customers.

In this article, we have mentioned quick and easy troubleshooting ways for all those AT&T broadband users that have been struggling with the slow internet or internet total outage due to the red flashing globe on their AT&T routers/modems.

Things To Take Care Before You Troubleshoot The Red Flash Globe:

We have already discussed how flashing red globe can ultimately lead your internet connection to go down. Troubleshooting this issue is inevitable. However, before going on with the troubleshooting ways to get rid of it, make sure you try the following things out:

  1. Upgrade Your Router’s Firmware:

Input your router’s IP address into the web browser. Enter your signing in credentials. Locate your Firmware or the Update section. Quickly download the most upgraded and up-to-date firmware on the manufacturer’s website of your router. Complete the action by uploading it.

  1. Relocate Your Router:

Sometimes the inadequate and improper spots for your routers make the signal mark so weak that it shows the red flashing globe. Try to replace your AT&T router broadband somewhere away from its recent location.

  1. Avoid Interference:

Mostly, your AT&T router shows flickering red flashlight because you made it so hard for the signals to generate efficiently by keeping your router close to the interfering objects and surfaces. Make sure you keep your router farther from obstacles.

After going through all these three steps, now you are ready to perform the following troubleshooting solutions that would help you big time to get rid of the flashing of red light on your AT&T broadband.

AT&T Broadband Red Light Flashing

The sole problem may lie within the entire outage of power supply. Perform the following tricks to turn that red flash into white.

  1. Restart Your Gateway:

Restarting your main broadband AT&T gateway would likely solve your problem on the very first go. Here is how:

  • Unplug the power/connection cord from your gateway’s back.
  • Wait for 15 to 20 seconds.
  • Plug it back.
  • Wait for your AT&T broadband light to turn green. This could take 3 to 5 minutes.

Make sure the connection is established securely. Trying this has 80% chances of getting rid of the red globe.

  1. Try Resetting Your AT&T Modem:

Sometimes the only solution that your AT&T broadband needs are resetting of its modem. Resetting it for once could make the red flash go away. Here is how you do it:

  • Press and hold on to the reset button located on your modem for 20 to 30 seconds.
  • Release the hold as soon as the lights turn green or solid white. Your services would get refreshed and functional after that.
  • Log in to your modem settings to reset it furthermore.

All the information that you would have provided, would go in the default state.

  1. Fix The Loose Connections:

Most of the time, the red flash won’t go away because you have connected the plug quite roughly. Try to eliminate the surge protectors and make the connection directly.


Troubleshooting the red globe on your AT&T broadband is quite easy with the above-mentioned fixes. Although, you can always contact your AT&T service provider for much advanced and proper troubleshooting.

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