Chromecast on hotel wifi.

Does it see the hotel wifi? What happens when you try to connect?

 

Call the front desk and get the credentials for wifi from them.

 

If your hotel TV is a smart TV I'd just use the integrated TV apps, setting up your own Chromecast onto a public WiFi network is a security and a privacy nightmare. You'll be intentionally adding your Chromecast to open access on an unsecured network. Think back to when you needed to first set up your Chromecast, it has its own unsecured mini-web server that you temporarily access to then pair up the device to your home network. It's the pairing up/connection process that's going to be a problem. Then it's a matter of having your Chromecast connected to an unsecured public WiFi network, a much different environment than your presumably secured home network.

If you travel a lot, it might be worth investing in a portable router/hotspot device. Then instead of relying upon risky public WiFi services you'll always have your own personal, mobile WiFi network. You can setup your portable WiFi network at home and configure whatever mobile devices you'll be bringing with you so everything is already set up to use.