Have you seen the instructions here?
https://community.talktalk.co.uk/t5/Articles/Using-Alexa-with-TalkTalk-TV/ta-p/2457651
You can also use the generic NetGem skill. I no longer use this but have successfully linked my box to both skills at one stage (but not at the same time).
I do recall that some people had an issue early on and had to reset the box to factory settings and it cleared the box of its memory of trying to pair.
Hope this helps.
From the 29th of March our TalkTalk Community will move to peer-to-peer support and the TalkTalk team will no longer be here to support with queries. Don’t worry we still have plenty of ways to reach out if you need to speak to TalkTalk directly. For more details check out the link here:
How to contact TalkTalk Broadband - Help & Support.
