[SOLVED] Network lost, how can this be?

[shengchieh]

> My guess is that wifi may be switched off somehow. My netbook has an option to switch off the adapter but the only way to switch it on again is through BIOS. Worth checking before tearing out more hair!

I agree.  If the wifi was working fine - chances are high you accidentally hit wrong button(s).  For example, on the eee 701 netbook, I could accidentally click Fn+F2 and toggle off the wifi.  A simple repeat
Fn+F2 will toggle it on.  Haven't figure out my current netbook, but I'm sure a hotkey shortcut is there.  Dig up the manual for your netbook.

Sheng-Chieh