Airport Connected, No Internet after upgrade

Hey All,
This is just an FYI incase you're experiencing a similar problem after upgrading to 10.6.
Both at home and on campus my computer would connect to the wireless network, however I would not be able to actually get online, Safari would say "you're not connected to the internet." Extremely frustrating experience considering that I could DHCP an address and everything seemed to be working properly. I was sure all of these networks were working too because my iPod Touch would allow me internet access.
Using my ethernet connection at home, I browsed around and found the quick solution. Go into System Preferences > Network and create a new location (restoring all the default settings basically). This fixed the problem, and reverting back to the "automatic" location cause it to recur. Unsatisfied with simply fixing the problem I compared the default settings to my own custom settings and found that there was only one real difference - I had manually specified a DNS server some time ago in 10.5. Upon its removal, my original configuration started working again.
Perhaps it's because this was a carryover from the old 10.5 system and the new one didn't like it - but who knows. I never tried just entering an IP address into an address bar or FTP client so maybe that would have worked and all it was was a DNS issue. Hopefully, this post will save some fellow like me a couple hours of head scratching!
Alex

Awesome post - worked great - thanks

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http://support.apple.com/kb/HT2712
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~~~~~~~~~~~~~~~
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