It shouldn't be possible to connect a booster to what is essentially a mesh router. Google searches state this and is the perceived wisdom.
However, one person on the forum has managed it, so you may have to do a search to find it, and see if they posted how they did it.
It was a while ago.
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).
