Short of a more comprehensive review of all your equipment and connections (and ideally a diagram, as mentioned by thyname), some questions...I did turn on the MoCA on the Roamio Plus.
The mini did connect to the internet using MoCA and download the info from TiVo. When the mini tried to connect to the Roamio I received the V78 could not find host dvr error.
Note: The mini used to connect to the Roamio by MoCA several months ago. I was gone for a long period of time and unplugged the mini from from the AC. When I returned and tried to repower the mini is when all of the troubles ensued.
My provider is Comcast.
- Is 'V78' the correct code? I find it strange that I'm getting zero search results for that code.
- What are you using for your modem and router/gateway (brands/models)?
- Do you have any other currently-connecting MoCA devices?
- Have you tried doing a factory reset (aka 'Clear & Delete Everything') of the Mini?