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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 (

Can anyone help me? I'm new to Ubuntu and don't know a thing.

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Driver issue probably? – pratnala Nov 12 '12 at 11:27
I have exact same problem on my computer, my network even just "times out". Have you checked if you have the latest drivers for your network-card? And yeah, on my computer, it only disconnects on the proxy-authenticated network, not on any other network. Is the same happening to you? – denNorske Nov 28 '12 at 7:59
thing could be driver yeah, but most likely the network uses a lot of routers, right? (placed around on the school) And after what i experienced, ubuntu aren't handling multiple routers pretty well. The network incompatible with ubuntu in some way. – Denny Nov 29 '12 at 7:51
Could you please tell us which model is your wifi card? You can use the lspci command to get such information. – jap1968 Nov 29 '12 at 19:43

It could be a problem with your proxy server , please check your account with some other OS'. (Like a windows os or something like that)

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Wouldn't it make more sense to start by examining the proxy configuration? – Eliah Kagan Jan 16 '13 at 14:35

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