I just installed Ubuntu 12.10 on my Acer Aspire One Netbook and everything works excellent except for the WiFi. When I click on a network I get connected but only for about one minute and then it says 'Disconnected - You are offline' It tries to reconnect and after a while it says 'Connection Established' It's a school network which uses no authentication but a proxy (172.16.4.1:8080) Can anyone help me? I'm new to Ubuntu and don't know a thing. Thanks for your help :)