Wi-Fi Not Working Properly

hello everybody,

yesterday installed os x 10.8 developer preview on macbook pro 2011, came problem wi-fi not working on it.

os x says macbook pro connected home wi-fi network, when start safari , want browse not load web pages. other apps require internet connection not working unfortunately.

how solve?

 

i assume have tried obvious? reboot modem / rooter, check network settings in system > preferences.

 

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