WiFi Problem after upgrading to Android 4

[#1]

Dear Friends

I bought my Xperia mini 3 days ago and I upgraded it to Android 4

After that I am not able to connect to Internet via WiFi and any mobile network

It means that my phone is completely disabled for connecting to Internet

Please guide me if any friends have had such problem

Is it possible to connect to Internet via USB in home PC ?

Thanks

[m4dj]

Have you run a repair after updating it with PC companion ?

If not, you should do it. I would reccomend to use SUS for upgrade with the option "factory reset + update"

If you run repair and the problem is still there, try to change the security / encryption mode on your router and see if problem solved.