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I have a Dell Inspiron 14R 5420 and after installing Ubuntu 12.10 the Atheros AR8162 wireless can't be detected. I'm very new to ubuntu.

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Maybe this can help:… – Milan Todorovic Dec 19 '12 at 11:30
thank you Milan, that just fix my wire network,but my wireless network still not working. – simon Dec 20 '12 at 1:16

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