I have problem with WIFI every wakeup from sleep after 10.7.3 (21.5-inch, Mid 2011)

Since 10.7.3 update, i have to manually reconnect to my WiFi network at every wakeup from sleep in 21.5-inch, 2011 (intel i5)!
Apple fix it!

You're not talking to Apple. This a support forum made up of non Apple employees.

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