Option a is correct. Captive portal issues is might best describe the issue occuring in this hotel.
Before newly connected users of a Wi-Fi or wired network are given full access to network resources, they are first shown a captive portal, which is a web page that can be accessed via a web browser. Authentication, payment, acceptance of an end-user license agreement, adherence to an acceptable usage policy, completing a survey, or other valid credentials that the host and user agree to abide by may be required when presenting a landing or log-in page through a captive portal.
Cable, commercially available Wi-Fi, and home hotspots are just a few of the mobile and pedestrian broadband providers that utilise captive portals. Access to residential or corporate wired networks, such as those in apartment buildings, hotel rooms, and business centers, can also be provided by a captive gateway.
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