Now, my latest issue is that the phone is not holding its established WiFi connection and/or doesn't automatically complete a WiFi connection as it had been doing, such as with my home WiFi . None of my home or phone settings have changed.
This phone has WiFi issues !!! (I'm saying for the 1001-th time....)
Now, for all of you wanting to respond that your S4 is rock solid with WiFi, good for you!