Samsumg S4 mini wont't connect to WI-FI...PLEASE HELP!!!!!!!!

[AP1]

I've had my Samsumg S4 mini for four months now and everything was perfectly fine.
I've been able to connect to the WI-FI at home but now it just keeps saying 'authentication error'. I restarted my phone several times, 'forgotten' the WI-FI and re-entered the password but it still does not connect to the WI-FI.

I have no idea what to do now, can somebody please help!!!

 

[B. Diddy]

Welcome to Android Central! Review this guide and see if the tips help: http://forums.androidcentral.com/am...roubleshooting-wi-fi-connection-problems.html

Posted via Android Central App.
Please excuse any typos or autocorrect derps.

 

[AP1]

I have tried the tips and I'm still not able to connect to my WI-FI