I do construction work and travel every week. I’ve had this problem pop up in the last month when I connect to the hotel wifi. I just open Firefox and type in the default gateway IP and then it takes me to the login page. For whatever reason it stopped opening the page for me.
On top of that. I just got a new laptop and bit locker was setup by default. Had to go into Windows and disable bit locker before disabling secure boot. I didn’t do that, RE enabled secure boot, then had to get the recovery key for bit locker.