Internet not working on my IPhone?

So I have an iPhone 4 that was formerly AT&T but now it's Net10 and my Internet isn't working? Can someone please help >.< thank you!

There are certain settings in the phone, like which network to go to, which need to be set properly. They are likely still pointing to AT&T, which is no longer your carrier. When you change carriers, sometimes you have to call the carrier. They would send their own internet settings to your phone, OR tell you what to set in your phone. Settings like APN.

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