Share your experience!
do you have location based wi-fi on?
setting>power managment
no its not location based open, its just open after few minutes when i turn off
http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008
boot in safe mode and see if problem still persist
nope..by reboot to safe mode you will lose nothing
Do you have keep wifi on during sleep?
I have asked if you have wifi during sleep enabled(in wifi settings).