[all variants] Cannot get wifi to connect.

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http://ubuntuforums.org – I have a new Acer Aspire One 725-0802 netbook. Ubuntu 12.04.2 LTS, 64-bit installed OS. It will not connect at home to my network. It has an Atheros Communication AR9485 wireless Network Adapter on wlan0. It is on the pci bus. (Hardware)