Hi @CharlesElwood,
1) You are correct that the Percept cannot connect to "guest" networks that require signing in via a popup screen.
2) To view the webstream the wifi network must not be blocking port 3000
3) To view the inferencing data the wifi network must not be blocking port 8554.
It appears that when the hotel removed client isolation on the network they unblocked port 3000 but not port 8554.