Wifi not working properly

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https://bbs.archlinux.org – I have a Samsung N150 Netbook with a Atheros Communications Inc. AR9285 Wireless Network Adapter.I ran both wicd and networkmanager. wicd can't connect at all, networkmanager can, but the connectiondies after like 10 seconds.I have another Laptop running Ubuntu, which uses networkmanager, which just works, and i recently hadan Android, which also worked just fine. Also, other people use this wlan with various devices.However, this used to work on this very Netbook running arch. It was always a little problematic, but acceptable. I used wicd exclusively that time. But for some time now, it (HowTos)