I've had this problem to, on 2 brand new V6 boxes. Virgin support don't know the answer and are having to contact Tivo for help.
I also noticed that the Netfix app on my phone knows about the 2 V6 boxes and wants to try and display the phone content through Tivo but trying this out just throws the produces another rejection by the Tivo box.
I believe the issue is with the Tivo box configuration, but Virgin Media support are relying on Tivo support to help them now!
Nope, unfortunately not! Tried again last night and it's the same thing. Other streaming services work fine, just Netflix. Also, according to speed tests, the internet speed is well down. On a 200mb line but getting 70mb (at 6.00am). Thanks for the reply though
I have looked into this issue further and have found a known fault with error code A01 on Netflix content (ticket number NKE00008620), this is currently being investigated and we hope for a resolution soon.
Apologies for any inconvenience this is causing at the moment and if you have any further queries please let us know.