This is a new one to me, and to the online Roku CSR, too, perhaps. A client of mine is temporarily in an apartment complex where, to get internet, you do this with your computer:
enable the wifi
open a browser
try to go to a URL (at least that's how I've done this step)
you're redirected to a web page put up by the house system
you enter a username and a password
you then, in a moment, can use the internet
...I think I missed a step in there after the first one, but the rest of the list is the real set of issues.
The CSR's final word:
am really sorry. We always recommend our customers to connect the Roku player to the Home Network. But not to the Open/Public wireless Networks and Hotspots.
Public networks such as apartment, hotels, restaurants, universities, colleges has terms and conditions. Other devices like PC/Laptop/iPhone may have browser page/options to accept the terms and conditions of the Public Network. But Roku do not have a browser page/Settings to accept it. That is why it is not connecting to this public network. Router is the gateway of the Roku player. So we can change the network settings on the router configuration page only.
In this case, we would suggest you to contact the 'Hotel Administrator' and setup a subnet on that network to connect the Roku specifically.
Makes sense to me. Not convenient, perhaps cannot be made to work, but makes sense!