I'm having the exact same problem. It used to stop when I paused and un-paused on on-demand services. When I complained, an engineer fitted a new wifi box and the problem is worse than ever. Now it stops during netflix programmes on my TV. I've also noticed that since getting my new wifi box, my NowTV on my laptop buffers. It never did this before. Clearly there's something wrong with these new wifi boxes. i don't want to upgrade my Tivo to the new box because i have a lot of programmes that I haven't gotten around to watching them and switching to a new box, deletes them all.
welcome to our community forums, I am sorry to hear you're experiencing issues with this. Is it a TiVo or V6 that you're experiencing this on? Also if you have broadband with us is the box connected to the hub via an ethernet cable? ^TomS