The splash screens aren't the only problem, some hotels enforce device isolation on the network too.
Some kind of travel router (or laptop) sharing the hotel's WiFi to your own little hotspot is the way to go. You probably wouldn't want your chromecast open to other guests connected directly to the hotel's wifi anyway.
Some kind of travel router (or laptop) sharing the hotel's WiFi to your own little hotspot is the way to go. You probably wouldn't want your chromecast open to other guests connected directly to the hotel's wifi anyway.