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I last had my computer connected 3 days ago to a wireless network (the one I am still on with other computers). AirPort says it's connected and has a strong green light (full bars in wifi) but when I open System Preferences, the 902.1X: WPA: says FreeWiFi_Secure and the button says Connect, so I press that and under that it says "Authentication server is not responding" and has the waiting signal (spinning flower thing).

The wifi works as I am on it on my phone and no one else is having trouble in the house.

Can someone please help this damsel in distress!

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What are your DNS settings? –  Undo Aug 27 '13 at 21:53
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If you hold the option key and select the Wireless icon in the menu bar, is there a Open Wireless Diagnostics and/or Open Network Diagnostics tool that you could run to narrow down where the failure is. If not, you might want to edit in your OS X software version so someone could point you to an appropriate troubleshooting guide for your OS. –  bmike Aug 27 '13 at 22:22
    
I don't know what the DNS settings are. –  Aussie traveler Aug 29 '13 at 18:10
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