A: According to the Internet access regulations for Internet connections, terminals must be successfully authenticated before accessing the Internet. Considering the complexity of mobile terminals, installing authentication clients on all terminals for identity authentication is impossible. However, almost all smart terminals are equipped with web browsers. It is recommended that identity authentication is performed on web pages.
Portal authentication (also called web authentication) is performed on web pages to implement identity authentication and provide personalized information services for users.
For details, see the [From Beginner to Expert - WLAN Fundamentals] Section 11 - WLAN Access Authentic