How do I repair my wireless connection?
How to Repair a Network Connection in Windows 7
Windows 7 is designed for networking and working with the Internet, so when your network connection isn’t working, it can be particularly frustrating. Fortunately, Windows 7 comes with a built-in troubleshooter that you can use to repair a broken network connection.
Choose Start→Control Panel→Network and Internet. Then click the Network and Sharing Center link.
Click the Fix a Network Problem link.
The link pulls you straight into the Control Panel’s Troubleshooting guide for the network.
Click the link for the type of network connection that has been - usually internet or network adapter.
Work your way through the troubleshooting guide.
Windows 7 will ask you a series of questions. As you respond, you’ll get closer and closer to the answer.
When the solution is found, close the Network troubleshooting guide.