i have just installed 12.04 and when i leave my laptop running for any length of time it goes into suspend mode and disconnects from the wifi. when i unlock the screen it trys to reconnect continuesly but doesn't. the only way i can reconnect is by restarting the laptop.
i like to leave my laptop running overnight to download stuff while i sleep, but at the moment its getting about 10 mins of downloading time before it disconnects!
any ideas how i can resolve this problem.
thanks in advance!