Turn Airport off.
Shut down the Macbook.
Start the Macbook
Open System Preferences > Network.
Choose Airport from the left hand pane
In the main pane, click Advanced
Click the Airport tab and you will see a list of wireless networks that you have been connected to.
Select the one that you for the campground and delete it.
Close the windows.
Turn Airport back on.
Because you have removed a "known network", the Airport software will go through the connecting process as if this was a new network.
Hopefully that will correct your problem.
P
I have an older version of a macbook, OS X version 10.5.8
We are living in a campground and so have been using their wireless internet without any problem. Last week, all of a sudden, the mac will not load any webpages. The airport is connected, and shows full strength, yet when I click on safari, it says "safari can't open the page...because your computer isn't connected to the internet."
I've tried zapping the pram, rebooted multiple times, reset the IP address manually, deleted the internet files in preferences...I don't know what else to do! We also have a PC which is connecting just fine! And we don't have access to the router or anything. Why would it quit working suddenly like that? I would really appreciate any help!

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