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Outages and interruptions in internet service can be a total nightmare for many people. This is because everyone, in some way, relies on the internet to get things done. It could be browsing the web, shopping online, checking emails, or doing freelance work.

That being said, some common issues can disrupt your home’s internet connections. For example:

Why is my ATT broadband blinking red? What does the red light on your AT&T router mean? What should you do if you notice a red light blinking on your router?

Why Is My ATT Broadband Blinking Red?
Why Is My ATT Broadband Blinking Red?

The truth is that a red flashing light or a red globe on the AT&T router is a common problem that internet users face nowadays. It indicates that there is no internet connection. As a result, whenever you see this, none of your internet devices will be connected.

On that note, there are several reasons why the AT&T broadband red light is flashing. The first thing to consider when troubleshooting a flashing red globe on your AT&T router is what the problem is. The flashing red globe indicates that a broadband signal has been detected but no connection has been established.


Before we can talk about the red flashing light and how to fix it, we need to know what the various lights on the AT&T router mean.

  • A broadband signal has been detected, but no connection has been established.
  • There is no signal on a line when it is solid red.
  • Flashing green indicates that the device is powering on or attempting to connect to the internet.
  • A solid green signal indicates a good and strong broadband signal.
  • The LTE device is present, but it is not functioning properly.


Your internet connection will undoubtedly be disrupted by a flashing red globe. People are panicking because they don’t know what to do in this situation.

There are a few things you can do to try to solve the problem as soon as possible. It’s possible that all of this is the result of something minor. So take a deep breath and try the following exercises:

1. Upgrade the router firmware

It’s possible that your router’s firmware is out of date, resulting in the red flashing globe. Simply enter the IP address of your router into the web browser. You will be asked to enter your sign-in information.

Following that, you will have access to an update section. Click on it to access the manufacturer’s website and download the most recent firmware. To complete the action, upload it. Check to see if the flashing red globe has vanished and been replaced by a solid bright white light.

2. Move your router

The red flashing globe is frequently caused by an extremely shaky connection that can’t maintain a stable internet connection. This could be due to an incorrectly positioned router.

This means that the router is in a location where it receives extremely weak signals, causing the red flashing light to illuminate. If this is the case, try relocating your AT&T broadband router away from its previous location.

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3. Avoid any interference

The flickering red light could also be caused by numerous signal interferences. If your AT&T router is kept near a lot of interfering objects, the signals may be extremely difficult to generate, resulting in the red flashing globe.

Remove any impediments or move them away from the router. Microwaves, cordless phones, and washing machines can all cause significant signal interference.

4. Check for overheating

Just like any other device, routers are also prone to overheating. You can simply touch the router to feel if it’s too hot. It might be that it’s overheated and therefore, can’t function the right way and generate signals as needed. That might be why there is a red flashing globe showing on the router.

ATT Broadband Blinking Red: How To Fix?
ATT Broadband Blinking Red: How To Fix?



What should you do now that you’ve relocated the router, upgraded the firmware, and moved it away from common obstacles? To finally get rid of the red flashing light, you’ll need some troubleshooting solutions and pointers.

For starters, if the broadband light on your AT&T router flashes red, it could be a sign of a problem with the cables connecting to your modem. Aside from that, the issue could be within your physical network.

It’s now up to you to figure out how to fix the flashing red light and eventually get back online. Fortunately, we are here to assist you at every significant step. Here are some useful tricks to try:

1. Restart gateway

The first thing you should do is unplug the gateway’s power supply for at least 15 seconds. In the event of overheating, this should give it enough time to rest and cool. After that, reconnect it and check to see if the broadband light has changed from red to green.

This could take up to five minutes. That being said, make sure the connection is well established and back to normal. This solution works the majority of the time, but there is a small chance that it will not remove the red globe.

2. Reset your AT&T modem

Resetting the modem has come in handy in a variety of internet-related situations. It almost certainly works regardless of the issue. Resetting your AT&T modem may be the most viable solution for removing the red flashlight.

You must gently press and hold the reset button on the modem’s back end for about 30 seconds. When the light changes from red to green or solid white, let go of the hold.

You could also log into the modem and reset it. Remember that resetting the modem will reset the gateway settings to default. Passwords, wifi usernames, static IP addresses, and SSIDs will all be lost as a result.

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3. Check for loose connections

Check all cables and connections to see whether there are some which are loose. If someone bumped into it and forgot to check, the connection could become loose. It’s possible that some cables were accidentally unplugged.

Reconnect them tightly and to the correct broadband port. Remove any surge protectors, battery units, or other equipment that may be in the way of a direct connection to ensure a smooth connection.

In addition, look for signs of wear and tear on the cables. Replace the worn-out cables with new ones if they are old. A bent cable or one that is pressed tightly against a sharp object can also cause a red flash globe to appear on your router. All of this rectification restores the green or white light.

4. Change the connector

It is difficult to understand things like the connector unless you are a technician. A plastic connector is located at the end of the broadband cable. This is used to connect the broadband cable to the router or modem.

In this case, you should carefully inspect the broadband cables to see if they are damaged or not functioning properly. If you suspect that the connector is the source of the problem, replace it and connect a new one at the other end of the cable. It may eventually aid in the resolution of the problem.

5. Reset it back to factory settings

Any of the above solutions can work to restore the solid green light on your AT&T router. However, if all else fails, there is still a viable option for you. You may have inadvertently changed the settings on your router or modem.

If it’s not you, it’s possible that an application you installed on your PC or laptop is to blame. If you can still connect to the internet through the modem, check its settings to make sure nothing is interfering with communication to your broadband cable.

Is there anything that could be causing the router to display a red flashing globe? If this is the case, it may be worthwhile to restore your AT&T router or modem to factory settings. It will then begin to work properly.

6. Check for outages

A power or internet outage can disrupt your router’s operation, resulting in the red flash globe. If you are unsure whether there is an AT&T internet outage, you can check their outage site for updates.

Storms or heavy rains, on the other hand, may disrupt the internet and cause problems. This is especially true if the service interruption occurred shortly after a power outage or storm.

7. Contact your service provider

After exhausting all other options, this is usually the last resort. Simply contact your ISP’s customer service for more information and assistance. It’s possible that their servers are down and the modem is unable to connect.

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It’s possible that problems with the wires on the other end are causing the AT&T router to display a red flash globe. It won’t be long before your ISP’s customer service diagnoses the problem and recommends the best solution. The flickering red light will go away quickly and you will be connected to the internet.

ATT Broadband Blinking Red
ATT Broadband Blinking Red


To begin, you should not skip any of the steps or solutions provided when attempting to resolve the flickering red light on the AT&T router. Furthermore, an AT&T troubleshooting tool is available to assist in determining a solution.

Aside from that, if the company investigates and discovers a problem on its end, it will do everything possible to resolve it as soon as possible.

If you are unable to resolve the problem on your own, you can schedule an appointment with an AT&T technician. Depending on the nature of the problem, it will be resolved sooner rather than later.

CONCLUSION On ATT Broadband Blinking Red

Hopefully, this was useful when you were having issues with your device. If you have a red flashing light on your AT&T broadband, following some of the steps in this article should help you resolve your problem.

If you can’t figure out what’s wrong, the next best step is to contact support. Support is available 24 hours a day, 7 days a week, and will resolve the issue as soon as possible.

FAQs About ATT Broadband Blinking Red

How do I fix the flashing red Broadband?

The first thing you should do is unplug the gateway’s power supply for at least 15 seconds. In the event of overheating, this should give it enough time to rest and cool. After that, reconnect it and check to see if the broadband light has changed from red to green. This could take up to five minutes.

Why isn’t my AT&T Internet working?

Power cycle (reboot) your AT&T gateway by unplugging it from the wall outlet and waiting two minutes before plugging it back in. Verify that your connection has been restored after the Power, Broadband, and Service lights on your gateway turn green.

What is the difference between a flashing red light and steady red light?

In this regard, a flashing red light is similar to a solid red light. However, because it flashes, you can drive through the intersection once the coast is clear rather than waiting for the light to turn green.

What exactly is a blinking light?

The blinking light is simply a light that alternates between on and off in a specific pattern. The pattern can be fast or slow, and the lights can be a single color or a rainbow of colors. Blinking lights are designed to interrupt the flow of current at regular intervals, causing the light to flash on and off indefinitely.

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