Default [Q] S5 droping cell reception

Hey yall, Recently got my new s5 from t-mobile. SM-G900T. i love this phone, but i have one issue that is very very annoying. At complete random it will say 4g or 4g lte <depending on where im at in my town>. i will show almost full bars but completely loose cell and data reception. unable to load web pages, and unable to make calls. it normally takes a power off let sit and turn on to fix. but that can last anywhere from 5 minutes to 3 days.. stayed in a hotel with Full lte. my S4 worked perfectly in the exact same spot. my S5 constantly droped out and would not load anything or call anyone untill i reset. all apps are the same thats on my s4. wifi seems to work when the phone network drops.. Has anyone else experienced this? its highly annoying and irritating. no error messages other then <you are not online> even tho my lte says full signal. <put my sim in my s4 to see it work perfectly in same area>