No Data on Unlocked G2?

I recently bought an unlocked LG G2 VS980 from amazon and I'm on ATT. I put my card in and I have basic service such as calling and texting but I have no data what so ever. I believe I have all the correct ATT apn settings but if you have any helpful information tell me. I'll be okay with just 3g. I'm on Blisspop running 5.1.1.