Comment 3 for bug 1040943

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Julien-Charles Lévesque (jclevesque) wrote :

I used the first fix in the post linked by Alexandru and I must say it clearly improved my connection stability. I'm going to paste it here for quicker reference :

Open terminal and enter the following command:

sudo -s gksu gedit /etc/modprobe.d/ath9k.conf

at the end of the file add this:

options ath9k nohwcrypt=1

Save an restart your OS.

If you still have the issue, then try the other instructions in the blog, but in my case I doubt they were at cause. First other fix is to disable n wifi, which I don't use, and the last one is to disable IPv6.