Wireless Internet is "Not Connected"

Ok so on my tablet pc i've been trying to set up the wireless network. I cant get it to connect or even find my network. Im running Windows 7. When I go to Network Connections my Wireless Network Connection is Enabled but it is Not Connected. How can I fix this? If you need any more information please let me know. I need help with this ASAP. Any reply is greatly appreciated. Thank You:D

P.S I called AT&T to try to get some troubleshooting but after an hour on the phone I realized i wasted my time.

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