upgraded my Xperia S from Android 2.3.4 to 4.0.4, and i've got problem with wifi connection.

[#1]

Hi,

I've just upgraded my Xperia S from Android 2.3.4 to 4.0.4, and i've got problem with wifi connection. 

At first boot after upgrading, i could connect to the Wifi normally, but when i restart my phone, I can't browse or anything.

Wifi is connected but i can't access to internet.

I don't think it's the problem with router because i could connect to it at first, and i didn't change anythings with the router.

Please give me any solutions. 

Thanks you!

[Nabeel]

You mean to say data traffic is not working well ?

if yes then do one thing

Settings > More > mobile network > APN > press menu button > reset to defaults

Now go to settings > Xperia > Internet Settings > Accept

[#3]

did it

not satisfied performence........

specially play store

it says connection time out

or no connectin retry

[dweaver1]

FAILS at the first step - I cannot even backup as my phone memory is not accessible even using USB (PC companion reports it's up to date though...)

[Nabeel]

yashpatil1988 Go for a factory data reset

Settings > backup and reset > factory data reset

Dwofc. What are you trying to do ?

[dweaver1]

Nabeel - thankyou, but will the reset erase my data ?

I use the PC companion to backup my phone & the file browser to copy my data & photos to the PC

[Nabeel]

Factory Data Reset will erase all data present on phone memory

Apps, messages contacts etc

[#8]

When I upgraded to ICS Over The Air on O2 phone the camera would not work just game me an error, so I reinstalled ICS vid the PC software & USB cable & everything is now working fine. 

This might help some users that are having problems/

[#9]

i have just updated my phone to 4.0.4 and the camera has broken down, any advice?

[zakirox123]

To fix the problem I downloaded software from sony & reinstalled the software from PC with USB cable plugged in the phone.

Hope this helps

[dweaver1]

Interesting zakirox123 - what software was this ?