Here's my WiFi problem. I'll notice that my internet stops responding, so I instantly go to restart the Airport card... then this happens.
http://www.youtube.com/watch?v=aVrMHQ-smMo
http://www.youtube.com/watch?v=aVrMHQ-smMo
Here's my WiFi problem. I'll notice that my internet stops responding, so I instantly go to restart the Airport card... then this happens.
http://www.youtube.com/watch?v=aVrMHQ-smMo
The first thing you should do is move your Airport Connection to be the #1 connection in Network Preferences. I noticed in your video in the Network Preferences you have it as #3. Drag it to the #1 (top) position.
Next is read this article about DNS settings from MacWorld and change your DNS settings to the ones recommended.
http://www.macworld.com/article/146064/2010/02/troubleshootdns.html?t=234
If you still have issues then download iStumbler (Google it) and this will tell you all the Wi-Fi networks in your area and what channel's they're on. If you are competing for a channel then simply the channel on your router to one that not within close range of your system.