I faced this issue today.

The rate is limited below 18 Mbps tested by iperf program

And I find many threads with similar question.

There are a lot of suggestions, such as changing rate, power..etc.

But all of this doesn't work at all.....

I just want to know if anyone has fixed this problem..?

Or should I give ath5k up and turn to Madwifi or ath9k???

- Yu-Chih