Why can't my phone connect to 4G LTE?

[I am Sara]

Why can't my phone connect to 4G LTE

My HTC ONE X cannot connect to 4G LTE and I have tried everything, airplane mode toggles, restarting, power off, etc. And I'm in an area Iim usually in. I've had this phone since release and just today I've had this problem. Help please?

 

[B. Diddy]

Re: Why can't my phone connect to 4G LTE

Welcome to Android Central! Have you contacted your wireless provider?