I apologize about the late response, thank you for being patient on this! Were you able to rest the Wi-Fi on that Chromecast? If not, I'd be happy to help out, since I know it's hard to sift through all the information online! Go ahead and check out this article on how to forget the Wi-Fi network on your Chromecast device.
I hope that helps, and if you have any other questions or concerns for me, please let me know!
We haven't heard back from evelynminuche45, 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.
Have a good one!