I posted this a few weeks ago and a member suggested I delete my WiFi cache or something and I did. It seemed to work for a while, but the problem is back and it is worse. Since doing all of that, I have secured my router with WPA 2 (before it was open). Now the problem seems to be worse. Before I would be showing full bars and have no internet. Now, it disconnects and shows it is disconnected. It will do this repeatedly as I am browsing the internet. To reconnect, I have to manually go to the status bar WiFi icon and select my router (and it will usually connect, but not always. sometimes it will refuse to reconnect for up to 5 minutes) even though I have it set to remember it and connect to it automatically. Any help would be much appreciated. This problem has made simply browsing the web a tedious task. My warranty runs out on July 11, so I would like to try anything you guys suggest soon, so I still have time to go to the apple store to check it out in case the problem persists.