How to Find My WPA2 Passphraseby Mark Robinson ; Updated September 28, 2017
Your WPA2 passphrase is important for staying connected to your secure wireless network while preventing others from gaining unauthorized access. This passphrase is created when you select the “WPA2” wireless security mode on your wireless router. If you lose your WPA2 passphrase, you will be locked out of your network until the passphrase is found or the router itself is restored to its factory settings. With most routers, you may be able to view your passphrase within the setup pages.
Connect an Ethernet cable to one of the four “Local Area Network” ports at the back of the router. Connect the other end of the Ethernet cable to the “Ethernet” port on your computer.
Locate your router’s IP address and use it to access your router’s setup page. Enter your router’s administrative username and password when prompted.
Navigate to the router’s “Wireless” page and click on the “Security” tab. Locate the “Passphrase” text field underneath the “Security Mode” menu. If the passphrase is obscured, click “Show Passphrase.” Write the passphrase down on a piece of paper for future reference.