WIFI connecting problem

[The_M]

When I try to connect it to my home wifi it just says it is connecting and after that I again see ''Saved, secured with WPA2'' .
I tryed to forget network , restarting my phone etc. but nothing helped!

Weird part is that when the phone is connected to the USB it connects normaly!

Can someone help me fix this?
TNX 

[Hampus]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

I suggest that you take a look at the following FAQ-thread to see if you can find any tip:
http://talk.sonymobile.com/t5/FAQ/Wi-Fi-problems/m-p/348104