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I used some older Ubuntu (so I guess it used madwifi), now I installed new Ubuntu 11.10, but I got problem with wifi, it uses ath5k - everything works, downloading etc, but if I stay to read some page for example (facebook messages etc) a then I am trying interact with the page, it does not load. I have to reload whole tab...

so the wifi somehow freeze when is in the idle...

I find several people with the same/similar issue:

but I did not find solution... I guess I can recompile madwifi, but this I consider as the last option...

my wifi: Ethernet controller: Atheros Communications Inc. AR5212/AR5213 Multiprotocol MAC/baseband processor (rev 01)

I tried disable ipv6 and install compact wireless drivers, did not help.

Thank you very much!

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Try the following solution, replacing ath9k with ath5k (you might need to update your kernel, as someone mentions in the comments)?

I'm not sure, but I think the ath5k has an identical option.

That is:

sudo -s
echo "options ath5k nohwcrypt=1" > /etc/modprobe.d/ath5k.conf
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