"Eduroam is an international federation of academic institutions which allows its users to visit other organizations and use the same username and password as they would use at their home institution."
It is a wireless network available throughout oxford colleges, departments and libraries as well in other universities throughout the UK and world.
To connect you need to register for a Remote Access Login at https://register.it.ox.ac.uk
Username will be of the format worcxxxx@OX.AC.UK where worcxxxx is your single sign in username.
Follow the guides available from the follwing link - https://www.ox.ac.uk/staff/it/services/wifi/eduroam for
This will show you how to configure various devices and operating systems for EDUROAM
Best approach is to either use the geteduroam app or the CAT Eduroam tool.
Additional Resources:
To change your EDUROAM password please go to this link https://register.it.ox.ac.uk/self/remote_access?action=pwreset
This site requires you to use your Univesrity SSO credentials to login, and reset your EDUROAM password.