My speeds inside the building (on the 40th floor) are ridiculously low. 112kbps Down 367kbps Up on a good day... But when I head outside, or near a window, the speed shoots up to 13MB Down 1MB Up and so on. Is there a better APN setting than the on my phone came with for T-Mobile? A Co-worker of mine that sits right next to me, has an S3 on T-Mobile and gets waaaaaaaay better speeds. Why is this?