Thank you for posting on the Community Forums! I will be more than happy to help you with this inquiry!
Programming your device with the correct APN settings is definitely important to use data services on our network. This excellent article walks you step-by-step through the process.
Keep in mind if you are using an AT&T device, you don’t have to change these settings. However, if you’re having trouble accessing data service, please visit the AT&T Troubleshoot & Resolve tool for assistance in resolving the issue. Make sure to select your phone’s make and model > Internet.
I hope this information helps! Please let us know if you have any other questions.
Have an excellent weekend!
Anabel, AT&T Community Specialist
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