Open your Wi-Fi settings and connect to the Wadham-Onboarding network.

When the login window appears, choose "I am a Wadham College member".

Sign in using your University credentials (e.g. wadh1234@ox.ac.uk).

After authentication, your new wireless password will be displayed.

Disconnect from Wadham-Onboarding and join the Wadham wireless network using the password provided.

Your device should now be connected.
Use the same password for all your devices.
If you forget it, repeat the steps above to generate a new one.
