Thanks for posting here in the Google Nest Community.
Sorry to hear about the trouble. I wanted to follow up and see if I could be of any help.
Sorry to hear about the trouble. I wanted to follow up and see if I could be of any help. A few things: Which Chromecast device? Is it happening to other apps as well, like Netflix? Are you casting from the Stremio app or website? What steps have you tried so far?
You can reboot your Chromecast device and your WiFi router to refresh both device and WiFi signal. You can also isolate the concern by using another device to cast and see if it will make a difference.
Looking forward for your response.