I am having the exact same problem. My computer is now basically a paperweight .
In the Windows Event Viewer I keep getting this error every time the connection drops:
The network interface "Intel(R) Centrino(R) Wireless-N 2230" has begun resetting. There will be a momentary disruption in network connectivity while the hardware resets.
Reason: The network driver requested that it be reset.
Anyone manage to solve this?? I've tried the drivers from Dell and they all fail on installation with the same error @praveenjohri shows. And the ones directly from Intel don't fix the error.