What user authentication method is commonly used in guest Wi-Fi networks in the hospitality industry?

Captive Portals for Guest Access: These are web pages that intercept users' requests before granting full internet access. They often require agreeing to terms, entering basic information, or viewing ads.

Hospitality Fit: Captive portals are simple to deploy, require minimal user setup, and provide control for the hospitality provider (e.g., usage limits).

Why Other Options Are Less Common:

NTLM: Microsoft authentication, mainly for corporate networks, too complex for casual guest use.

Kerberos: Complex authentication for enterprise, overkill for guest Wi-Fi

SIM Cards: Used in cellular devices, not for general Wi-Fi access.

References:

Captive Portals: Explanations of how they work and their use cases.

Guest Wi-Fi in Hospitality: Best practices highlight the prevalence of captive portals in this industry.