Re: Firefox can't find the server at....
Power cycle the wireless access point.
Is the netbook the only device that cannot connect via WiFi on that particular network?
Open a command prompt (Windows + R Keys > type "cmd" > press enter)
type the following:
I would then go into Control Panel > Network and Sharing Center > Manage Wireless Networks (on the left)
Select your Wireless Network and "Remove" it.
Reboot the netbook and rejoin to the Wireless network.
Humans are the only creatures that won't live up to the their potential. Give everything your all. When you die, die on E.
So I ask you, what do you intend to do now?