My Samsung S5 mini suddenly can't connect to the wifi, how can I get this working again?

[AC Question]

samsung s5mini suddenly cant connect to wifi.

Did the steps on previous post here, problem is with router security but even if I change the security protocol it still doesn't work. on my router options are:
None
WPA2-PSK [AES] - default
WPA-PSK [TKIP] + WPA2-PSK [AES]
WPA/WPA2 Enterprise

last option doesnt seem to work and middle two block the samsung. work fine when security is disabled

 

[B. Diddy]

Re: samsung s5mini suddenly cant connect to wifi.

Welcome to Android Central! Have you rebooted the router? Have you forgotten the network on the phone, then tried to reconnect? Stick with WPA2-AES at this point.

Review this guide, if you haven't already: http://forums.androidcentral.com/am...roubleshooting-wi-fi-connection-problems.html