Your TV or your TalkTalk box?
If the box, do you have the 4k or TV Hub?
If 4k one try a reset by pressing the button on the left hand side 5 times until it restarts.
If the Hub, try a factory reset from the settings menu.
If other devices connect ok, I doubt it's the router, but if the above reset does not work, try turning the router off for 30 minutes and then try again.
Let us know how you get on.
Please remember to mark Solved Posts with Best Answer. Doing so helps other customers and saves TalkTalk's Support Team time by only looking at unsolved topics. Thanks, Steve (a fellow customer).
