Gateway LT2805u Netbook Running Ubuntu 10.04.
Wireless suddenly stopped working. rfkill shows no output. And the wireless card shows "Unclaimed".
Card is an Atheros (ar9285 i think). My hardware switch is the F3 key but it has no effect.
If I load Ubuntu 11.10 it all seems to work fine, however I would like to stay at 10.04.
Also, I am brand new to Ubuntu so keep that in mind.
It seems many people are having a problem with that wireless card and I could not find a solution that works for everyone.
The most common solution is
echo "blacklist acer_wmi" | sudo tee -a /etc/modprobe.d/blacklist.conf
echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
Then reboot.
Posted on this blog - http://ubuntulinuxgethelp.com/2012/02/ubuntu-sony-vaio-atheros-ar9285-suddenly-keeps-dropping-wifi-connection/
Same commands are posted on the forums and askubuntu
Example: Why is my internet so slow with an Atheros wireless card?
You can also try (you will have to enable the backports repository first).
sudo apt-get install linux-backports-modules-wireless-lucid-generic
From https://help.ubuntu.com/community/WifiDocs/Device/Atheros/AR9285
My advice would be for you to try a more up to date version of Ubuntu as this is goin gto be dependent on the kernel. You may want to try 12.04, and if it does not work, file a bug report.
