Wireless network does not automatically reconnect after sleep

I have a Belkin wireless G+ mimo modem router network. When I wake the mac from sleep it does not automatically reconnect to my wireless network and i have to manually select the network from the airport icon in the menu bar and then it connects without having to reenter my secure password. How do i set the mac to auto connect to the network after sleep? There are about 6 other wireless networks in range which may be effecting this reconnection.

In may case the network was already at the top of the preferred networks list.
Based of of a hint over at MacOSXhints.com, here's how I fixed this problem:
1. In the Network references pane, delete the Airport connection that does not like to reconnect.
2. Click Apply and Quit the System Prefs app.
3. Put the computer to sleep.
4. Wake the computer.
5. Go back in to the Network pref pane and re-add the Airport connection. Do not try to connect to the network at this time.
6. Click Apply and Quit the System Prefs app.
7. Use the Airport menubar app to connect to your network.
8. Verify connectivity
9. Put the computer to sleep.
10. Wake the computer.
11. Verify connectivity
My machine now consistently reconnects when coming out of sleep or restarting.
God luck!

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