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I just installed 12.04 on my desktop computer, and everything is great, but I can't connect to my home WiFi.

Ethernet cable is working fine, but the wireless recognizes the WiFi, but can't connect. I somehow managed to connect to my home network with no Internet for a few seconds, but I don't know how. I was playing with the settings at the time.

Please help.

Using a Vigor510 Netcard if it helps anyone.

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Have you tried running "Additional Drivers" to check if you have any special hardware card with non-free drivers? –  Capt.Nemo Sep 2 '12 at 19:51
    
yes, didn't work –  tomer Sep 4 '12 at 16:32
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