Some hotels have open wifi that do not require entering an SSID password, then you get a captive portal page to enter information before the connection is allowed to access Internet. I was in such a hotel over the past few days with a GL-AR750S Slate router.
Some hotels have secured wifi that requires entering an SSID password that the hotel gives you, then you do not get a captive portal page. The password is case-sensitive and has to be entered exactly. If you are not able to connect to the wifi, then you may not have entered the password correctly, or the hotel did not give you the correct password.
It is somewhat rare, but some hotels may require you to enter both an SSID password and enter information on a captive portal page.
From your description, I am not completely clear on which situation you are encountering at the new hotel you are at currently.