slow wireless with ath9k

[granul]

I install Kubuntu 11.04 on a laptop but the wireless connexion is so slow. It use the integrate wifi ath9k driver, is there any solution?

Thank you

[uncaspi]

Try to turn off power save mode. sudo iwconfig wlan0 power off
I assume your card is wlan0.

[granul]

Try to turn off power save mode. sudo iwconfig wlan0 power off
I assume your card is wlan0.

I tried this but it does not work, I think the problem is with the driver ATH9K of my laptop integrate wifi

[wburden]

After I finished the upgrade to 11.04, my Ath9k wireless driver gave me downloads of 0.90 Mbps where I was previously getting 30.0 Mbps. The solution below worked for me in Ubuntu 11.04... Good Luck!

Enter the following Code in a terminal session:

sudo -s

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

reboot

[AaronBiddle]

After I finished the upgrade to 11.04, my Ath9k wireless driver gave me downloads of 0.90 Mbps where I was previously getting 30.0 Mbps. The solution below worked for me in Ubuntu 11.04... Good Luck!

Enter the following Code in a terminal session:

sudo -s

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

reboot

I have altogether about 5 hours experience in Ubuntu and not all that familiar with a unix environment. After reading at least 20 pages of people's not so successful attempts at rebuilding the driver from source I'm glad to have found a simple solution that just works. I'm back up from 50 KB/s to my usual 1.2MB/s.

Thank you Thank you Thank you!!!!!

Aaron

[granul]

Thank you it works

[jepong]

After I finished the upgrade to 11.04, my Ath9k wireless driver gave me downloads of 0.90 Mbps where I was previously getting 30.0 Mbps. The solution below worked for me in Ubuntu 11.04... Good Luck!

Enter the following Code in a terminal session:

sudo -s

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

reboot

I have to say this WORKS!!!! but wireless card still goes to sleep. I still have to try uncaspi's advice.