MTL-09 No LTE ATT

Hi All,

I just got a MTL-09 and no matter what I do I am unable to get LTE data speeds on ATT. I can get H+ and I am in a LTE coverage area about a mile outside new York city and att has assured me my apn settings are correct. My older 1520 can get lte to if i put my SIM in it. Any ideas?

Thanks!
J