Instructors: You will need to make sure that you have enabled public registrations before your students will be able to login to a Public CTF event. Please see our guide on Setting up a Public CTF for further information.
Are you signing up using the unique public CTF URL?¶
Students: Make sure to use the URL provided by your instructor to register for the Public CTF event. Checkout our guide on How to Join a Public CTF for instructions on this process.