Hey there Bears,
I apologize about the slow response time, thank you for being patient! Were you able to fix that Chromecast issue? If not, I'd be happy to help out, as I can imagine this issue has been frustrating for you. Let me just ask you some questions about what's happening:
There are a few things we can try depending on whether the LED light on the Chromecast is flashing, or the Chromecast Voice Remote. Please check out the linked articles and let me know which LED state you're experiencing, and follow the steps the article suggests, if any.
I look forward to your response, and if you have any other questions or concerns for me, please let me know!