My Samsung Galaxy SIII keep automatically connecting to WIFI, even when I have switched WIFI to OFF. I also tried disabling NOTIFY ME WHEN THERE'S AVAILABLE WIFI. I'm sitting in my house, did both those steps above, and when I use 4g to get into data, later on I see that the phone has automatically connected to my WIFI. I've been having lots of trouble with this. I don't understand why it keeps happening. HELP!