I was at the Kum & Go last night at about 10:00pm and my phone kicked in to 4G mode, it was not working the whole time. It would show an upload in 4g and not download part of the time. But it did show up.
The 4glte is not working very well in that area. The upload seems to be working more than the download. I was in that area last night and had to reboot my phone to get the download working.