What device are you trying to connect them to?
Smart TV, TV Hub etc.
Your credentials will no doubt have changed so you need to access the App on your device and go to settings and log out of both.
You will then need to log in using the details you entered when setting up your new accounts, following any prompts you may receive.
Hope this helps
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).
