We are here to help you maximize your Internet to get the very fastest speed on the AT&T Network with online tools that will test your speed and troubleshoot issues.
NEW!: Are you new to AT&T Internet? Let us Welcome you to AT&T Internet and help you connect your devices, optimize your speed and much more!
Our Troubleshoot & Resolve tool offers you step-by-step instructions to fix your internet speed problems for you.
If you're having a problem connecting to the internet, you may see an error message on your screen that starts with NAD.
Check to see if there's an outage in your area and learn about other reasons you might get a NAD error message.
Learn about the factors that can affect Internet speed - and steps you can take to get the most out of your service.