Wifi apparently broken since ICS update

[thisnameistaken]

My phone will connect to wifi networks (like mine, the one in my local pub, the one at work, etc.) but no data is ever successfully transferred.

I'm on 3 and this seems to have been happening since ICS arrived. Is this a known problem or should I give 3 a call?

 

[Forbidden 403]

If it's an official ICS update then it should have no wifi issues. I guess you should give 3 a call