My friend had the same problem because the driver you are using sets the minimum speed rate to the device by default. Try this command in a console and please tell us if it has worked for you. Thanks!
sudo iwconfig ath0 rate 54M
My friend had the same problem because the driver you are using sets the minimum speed rate to the device by default.
Try this command in a console and please tell us if it has worked for you. Thanks!
sudo iwconfig ath0 rate 54M