Why is my WiFi turning itself off and using up my app usage?

[AC Question]

I have to go in Ann's turn it back on manually, but I shouldn't be having this problem. I have the Samsung S6 Edge.

 

[VW Maverick]

Welcome.
See if this can help: http://forums.androidcentral.com/am...roubleshooting-wi-fi-connection-problems.html

Mav.