I am trying to understand why my wifi will suddenly shut off at home, even though it is set to stay on even when my phone is asleep. Some of the advanced setting are confusing, such as what is "reminder frequency"? I imagine that there is a setting I am not aware of that is allowing data to override wifi, or an app that is causing this, but have yet to figure it out. This blu vivo 8 is a replacement for a lost blue energy....loved that phone, never had a problem with it!