It's saying I'm using too many devices so can't play anymore however 3 devices that I have used now TV to watch now turn off not connected to the Internet so therefore there is only one connected still wont allow me to watch on my TV
There can be a delay if you don't close out completely from the app on any given device before trying to use another one. Just make sure you do that first.
The delay is of the order of about 20 minutes.
Is this what you are experiencing, or has it been going on longer than that?