AT&T’s broadband light blinking red and green is a common sight in households across the United States. For many, it’s just another annoyance – one that can lead to slower internet speeds and other problems. But for those who live in Comcast territory, this might be a much different experience. Comcast has been accused of engaging in market manipulation by using its control over the broadband infrastructure to advantage its own services over those of its competitors. In this blog post, we will explore how AT&T’s broadband light blinking red and green is related to Comcast’s market manipulation techniques. We will also provide tips on how you can protect yourself from these practices and get the best possible service from your provider.

What does this mean?

If you are experiencing intermittent problems with your AT&T broadband connection, it might be time to take some steps to troubleshoot the issue. The blinking red light might indicate a problem with your DSL modem or cable modem, while the blinking green light could mean that your Internet connection is not reaching its full potential. To determine which of these problems is causing your issues, you can try some basic troubleshooting steps:

  1. Check for loose connections between your devices: Make sure all cables are plugged in securely and that there are no gaps or spaces between them. If you’re using wireless connections, try switching to a different channel if possible.
  2. Reset your modem and router: If the blinking lights are still occurring even after following these steps, it might be time to contact customer service and have them reset both your modem and router. This will clear out any temporary issues and give you a fresh start.
  3. Try a different ISP: If none of these steps work, it might be time to switch ISPs. There are plenty of providers out there who offer great broadband speeds without any blinking lights!

What can you do if it’s happening to you?

If your broadband light is blinking red and green, there are a few things you can do. First, check to see if there’s something blocking the light from coming on. If the light is coming on when there’s nothing blocking it, then it may be a problem with the modem or wiring. Try unplugging everything and replugging in the equipment one at a time to see if anything changes. If that doesn’t work, it may be a problem with your internet service. Contact AT&T customer service for more help.

What to do if it’s not fixed?

If your AT&T Broadband light is blinking red and green, there are a few things you can do to try and fix the issue. First, make sure that your modem is properly connected to the internet. If it isn’t, you may need to call AT&T’s customer service line and have them help troubleshoot the problem. If that doesn’t work, you may need to call an electrician to fix the wire in your home.

How to fix it?

If you are seeing a blinking red and green light on your AT&T broadband connection, there is a very simple solution. This issue can be caused by an incorrect setting in your router or by a faulty cable. Follow these steps to resolve the issue:

  1. Reset your router. This will usually fix any problems with your network settings.
  2. Check the cable connecting your broadband modem to your router. Make sure it is connected properly and that the cables are not twisted or kinked.
  3. If steps 1 and 2 fail to fix the blinking light, try resetting your modem itself. To do this, power off your modem and wait 10 seconds before powering it back on again. Once it has restarted, enter its diagnostic mode by clicking on its button (usually located near the power cord).
  4. Enter the default username and password (usually “admin” and “password”). Once you have logged in, click on thebutton to reset all of its settings to factory defaults.

What Does It Mean When the AT&T Modem Broadband Light Alternates Between Red and Green?

When an AT&T broadband modem is set up, it will typically blink between red and green to indicate that the connection is active and working. This blinking light pattern is designed to help the user keep track of their connection status.

3 Ways To Fixes AT&T Modem Broadband Light Blinking Red And Green

If your AT&T broadband modem is blinking red and green, there are three ways to fix the problem.

  1. Reset the modem: To reset the modem, you will need to disconnect it from your computer and power it off for at least 10 seconds. After 10 seconds, plug the modem back in and wait for it to initialize before reconnecting to your computer.
  2. Update the firmware: If you’re experiencing issues with your broadband connection, updating the firmware on your modem might solve the problem. To do this, you’ll need to access your modem’s settings (usually through a web browser) and check for updates. If there are any available, install them.
  3. Check your cables: If none of these solutions work, make sure that your cables are properly connected by checking for kinks or faults.

#1. Reboot the modem in question

If your modem is blinking red and green, it might be time to reboot it. This is typically a sign that the modem is not working as it should and needs to be fixed. If you’re having trouble with your broadband connection, try rebooting your modem as a first step.

#2. Restart the Gateway service.

If you are experiencing issues with your AT&T broadband connection, there are a few things that you can do to try and fix the problem. First, make sure that you have an active internet connection. If you don’t have an active internet connection, you can try connecting to the internet using another device in your home or using a WiFi network. Next, try restarting your gateway service. To do this, unplug your broadband modem from your computer and plug it back in again. After doing this, wait 10 minutes and then test your broadband connection. If the problem is still present, then you may need to consult with an AT&T representative about resolving the issue.

#3. Check to See That the Connection Is Stable

If you are having issues with your AT&T broadband connection, the first thing you should do is check to see if the problem is with your modem or router. If the connection is stable on your end but the light on your modem is blinking red and green, it likely means that your modem needs to be replaced. If problems persist after checking the basics, then it may be time to call AT&T support.


If you’re experiencing the AT&T Broadband Light blinking red and green, it’s likely that your internet is not working. This issue can happen for a variety of reasons, so if you’re not sure what might be causing it to go offline, please let our team know at 800-922-0922 and we’ll do our best to get the lights back on for you. Thank you for using AT&T Broadband!