Can connect through ethernet but not airport

[soundbase]

I am having a problem with my Macbook with 10.8.2 installed. It connects to my network via ethernet but not through airport. It has worked with other wireless connections, but just not at my setup at home. It pickups up an IP and DNS but cannot load a webpage. My PC, iPhone, and iPad all work so it is definitely something wrong with the Macbook. I tried deleting the network under my preferred network. And I have tried deleting the com.apple.airport.preferences.plist and NetworkInterface.plist files. I restarted the Mac and tried when it restarted but still no luck. Anything else it could be?

 

[soundbase]

Can connect through ethernet but not airport

I found the solution. It was a corrupt preference file I missed. I deleted the preference.plist file (Library > Preference > SystemConfiguration) and that did the trick.