Sony Xperia Z Wifi issues

[Kdez]

HI I have sony xperia z and has been connecting to my wifi until today the wifi signal bar dissapeared and now with using the correct passwords i still cant log on to the wifi. I have a Iphone but is not giving me any problems and i am connecting to the same network. Please help

 

[Phillip Corcoran]

Try shutting down the Xperia then starting it up again. make sure you actually shut it down (press & hold power button).