I cani conect my i Phone with wi fi

[Iqbalkaduji]

I have 3G i Phone, I used it with wi fi. But now I ca" t connect it with wi fi. Pl help me.

 

[buwish]

Is it just happening at home or is it happening no matter where you try to connect to wifi? If it is just happening at home, for example, just unplug the router for a few seconds and then plug it back in.