Ubuntu – Why is the internet so slow with an Atheros wireless card


Since I upgraded from Ubuntu 10.10 to 11.04, my internet connection is as slow as hell. I have tested my other 10.10 machine and it is just as quick as the first one was.

What has happened? Why is the maximum download speed now 30kb/s instead of the 2.5mb/s I used to have?

Best Answer

I've found out the problem; it's some sort of problem with my wifi driver (ath9k) which was resolved with a simple command:

sudo -s
echo "options ath9k nohwcrypt=1" > /etc/modprobe.d/ath9k.conf