All Google Home and Google Nest devices are designed for use on a secure, private home WiFi network. They can not connect with 'captive portal'type network's that require a username and password to be entered on a login page.
Some users have used either a shared connection from a mobile device or computer or a travel router in these situations.
Due to inactivity, I'll go ahead and lock this thread in 24 hours. Feel free to start a new thread if you need assistance with your Google speakers and we'd be glad to assist you further.