WiFi Issues With MacBook Air

I am about two weeks in to my new Macbook Air and love it except for the wifi. I have had five or six other Mac laptops in the past five years including the original air. I can confirm that there are some wifi issues with the Macbook Air. Based on the messages posted here and my experience here is where I am. I think if it is a "N" network it seems to work fine. I have never had an issue with my Airport Extreme at my house or my Dad's Linksys at his house which is also an N. This also I think resolves the "is it an ISP" issue, since they are distinctly different ISP's and these both work perfectly.

My problems are on non-N's it seems. I travel a lot so I hit a lot of guest networks which are almost always "g". These networks I can generally find and attach to them but not get a consistent internet connection. With these networks I have found that turning the airport on/off and refreshing the IP address does not work. Again I can connect to the browser, in most cases get what appears to be a valid IP but not gain any internet access. I have found that a power down and reboot AFTER attaching to the network (but not getting the internet connection) will then give me a steady and consistent connection.

I need to do some more testing and I guess traveling to pin down some of these things but I wanted to share what I have found thus far, but I definitely think there is a problem with the wifi on the new MacBook Air's.

Thanks,