Not only that, but managing wifi channel congestion in a dorm is a pita.
It’s tough enough when you fully control the airspace, to have nice clean coverage and overlapping cells.
But then add dozens or hundreds of individually managed APs in a tiny space…with DFS and/or 160MHz channel widths?
Ops best bet is to get their own 5g home internet and plug in.
You’ll be hard pressed to get a router to talk to a captive portal sign in…but if OP wants to get creative, this can easily be fixed with a dumb switch and a Linux PC with two NICs. You could use windows for this, but why would you?
It’s an ironic name. Like the burly gangster named “Tiny”.