At what point do you experience issues? Google doesn't recommend the use of a hotspot, and your mileage may vary. Note you need 2 devices to setup your Chromecast to connect to a Wi-Fi hotspot.
We haven't heard back from RSC1227, and it's been a few days, so I'm locking the thread. As always, feel free to make a new thread if you have any more questions or concerns.
Thank you for your help, David!