Have you tried to reinstall it? If you haven't try that. Disconnect your router/modem from computer. Restart computer and then hook it up. If that doesn't work, hang in there, someone may be able to help. I am know expert but just mentioned what I had to do for mine.
When you click on the wireless icon, it should list any networks you are receiving. Is this what you are looking at?
At the top of the window, it states you are not connected? But you do have internet access?
Do you see your network listed in the lower part of the window?
What is the icon showing exactly, a red x or a yellow triangle?
Are you using the wireless adapter? If so. open the Device manager in the Control Panel,and open, Network adapters. If you see an Ethernet adapter there, right click it and disable it. See if that solves the problem.
Enter the router config. You will find an option there, concerning ssid broadcast. Disable it and try again.