USB wireless network adapters offer instant Internet access to PCs with no built-in wireless capabilities. They are also smaller and more convenient than bulky wireless network cards. If you are experiencing Internet connection problems, there may be an issue with your adapter. Reset your USB wireless adapter through Windows to repair any problems that occur with the device.
Click the "Start" button on your task bar.
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Open "Control Panel."
Select "Network and Internet" from the new page.
Click "Network and Sharing Center" from the top of the window that appears.
Locate your USB wireless Internet adapter icon. Right-click it, then select "Disable" from the drop-down list.
Right-click the adapter icon again. Select "Enable" from the list.
Enter your administrator login and password, if prompted.