Thanks for reaching out and I'm sorry to hear about that. Please try to move your other TV closer to your router and try again. Plugging in the Chromecast into a different HDMI port on your TV might also help.
Just checking in to make sure that you've seen my response. Please let me know if you have other questions or concerns as I will be locking this in 24 hours if I won't hear back from you again. Feel free to start a new thread and we'll be happy to help.
Cool! Glad to hear that this has been sorted out and thanks for sharing your resolution in the Community. In the meantime, do you still have other questions and concerns?