If you are trying to get a Windows XP computer to connect to a wireless network that is running WPA and you’re having trouble, check to see if you have the most recent service pack installed.
When XP was released, WPA wasn’t something Windows did. Sp1 should allow for connection to WPA networks, and SP3 introduces more support and WPA2 support as well.
Your hardware must also be WPA compatible.
You may find that basic WPA support can be given by installing the updated issued by Microsoft for WPA support. This is available here:
https://www.microsoft.com/en-us/download/details.aspx?id=3914
Or, even better, install SP3. If you don’t want to use Windows Update to install SP3 for you, or if you don’t have Internet, you can download the entire package here:
https://www.microsoft.com/en-us/download/confirmation.aspx?id=24
