wifi connection problem

[shahbazali]

hi i am using galaxy s3 i have a problem with wifi when i connect to it shows different error unstable network authontication error etc i dnt know what i do i am in serious problem before it was perfectly ok and also when i take very near to wifi router it connect when i take is just a bit far it do not browse even have a strong signal help me plz

 

[B. Diddy]

Welcome to Android Central! Review this guide: http://forums.androidcentral.com/am...roubleshooting-wi-fi-connection-problems.html