trouble w/wireless connection from laptop

I have a router connected to the dsl at the desktop. I have 2 laptops that I want to connect to it. The first one finds the connection, we type the password in, and it connects perfectly. When I go on the internet the pages are displayed. The 2nd laptop does the same thing, except after it connects to the router, when you open internet it says page not found, as if theres no connection. Help?

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