Wifi and cellular data keep turning off by itself. I have an Alcatel onetouch fiercexl.  All of a sudden my wifi and Metro PCS cellular data keep turning off.  It only stays on for a few minutes. If try to use any app or go on the internet by the time I load it it says no internet connection.  I use my data if I'm not home and wifi at home and they both keep turning off.  Is there anything I can do about it?
I had the same problem.  Android Samsung S5.  Wifi kept turning itself off. Very annoying.  I had the smart network switch on or off...didn't matter.  I discovered that I had the ATT Smart WiFi app enabled.  I turned that off and it solved the problem.