It was working yesterday but now I can't connect. When I try to connect it my computer says Window cannot find any networks. But on my other laptops the internet works fine.
Who knows. Computers do weird things. I would try turning off your wireless device on the laptop and restarting. If that does not work delete the connection and start over. Also take it to a wireless hot spot like Panera or something and see if it can recognize that network. Maybe the wireless device is broken or malfunctioning.