Default T-Mobile Moto X Connection issues.

I just got my new T-mobile Moto X yesterday, got it activated and it works great at home. But often when I am out and about it will say I have 4g (HSPA+), but the internet will not be working. I was curious if maybe I just have bad APN settings? Any suggestions would be great! Thanks!

Edit: Does unlocking the bootloader invalidate my motocare package? I've tried looking a bit and I'd like to unlock it, but not if it renders motocare useless.