When I open browser(Boat browser or any other) and navigate to some url it works. Downloads are also working fine, but when i press 'home' button and go to home screen, the speed goes down to zero, but internet is connected. When I again switch back to browser, speed goes up.
This happens even when I lock screen.
And even my gmail and google play apps are not working
Motorola Atrix 2
Updated to ICS 4.0.4