I've seen similar posts but none with an actual solution. Hoping that has changed in the year since the last post on this topic.
I've checked in to a Hilton hotel and connected to the wifi network with my phone and laptop. I've connected my Roku to the TV via USB and HDMI. Normally, at a hotel, I'm able to follow the instructions to connect with the link provided when I choose "I'm at a dorm or hotel" but it is not working this time.
I'll be connected on my phone to hotel wifi and my phone will detect the roku network but it will not connect, even with the passcode provided by the roku unit.