AppleTV app does not work on FireTV
Trying to login to my Apple Account on a new 43 inch Insignia 4K FireTV via native AppleTV app and no matter how I try to login, I get a verification failure message and I’m told to try again in a few minutes. I have tried everything on these forums—I have factory reset the TV, cleared data and cache, uninstalled and re-installed, installed updates and nothing has gotten the feature to work.