Hey there tiny9688tiger,
I apologize about the late response on this thread, thank you for being patient! Were you able to fix that pairing issue? If not, I'd be happy to help out, as I know these networking issues can be tricky! Go ahead and check out this article and give the troubleshooting steps a try, and let me know if this problem persists.
I look forward to your response, and if you have any other questions or concerns for me, please let me know!
Thanks for the help, Jeran.
tiny9688tiger, do you still need help? If yes, Could you please tell us if your TV has a built-in Chromecast or if there's a separate Chromecast dongle plugged into it? Have you tried the suggested steps on the link provided by Jeran? If yes, how was it?