My Vaio PCG 7171L just upgraded to Windows 10 on its own. It prompted me to enter my WiFi network's security key when trying to connect my Internet, but every time I enter my security key, an error says that it cannot connect to the network. The password is definitley correct, and the WiFi is properly working, being that other devices in my home are connected to it without any issues. I have not recently changed the password or anything. I believe this is because the system upgraded to 10. How can I fix this network issue?
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