I have wifi turned on and mobile data turned on and can't get web, facebook, or email to work on my phone but as soon as i walk out the door it works. I'm the only one with a smart phone that can't get wifi and mobile data to work in the building. had it working once when i was playing around with the settings but after one day it stopped working without me changing anything. please help me figure out what is wrong or how to set it up.