After sleeping - Macbook Pro won't connect to Internet unless I restart it

Ever since from the update I got for the airport, I had to restart mbp after its sleep mode if I want to go surfing online... how do I ensure that I don't need to do this each time? Any assistance would be greatly appreciated!

Try zapping (resetting) the PRAM: Turn the MBP off, then, when you restart, hold down the -Option-P-R keys. It will chime, then restart and chime again. Let this happen twice (2 or 3 chimes) and then release the keys.
Reset the SMC (System Management Controller)
If the computer is on, turn it off.
Disconnect the AC Adapter and remove the computer's battery.
Press and hold down the power button for 5 seconds and then release the button.
Reconnect the battery and AC Adapter.
Press the Power button to restart the computer.
For good luck, repair disk permissions:
From the Finder, click on "GO", then "Utilities" on the drop down menu. Open Disk Utility, select your Mac HD, and click on repair disk permissions.
Good luck!

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