I enabled wireless so it could connect to the TiVo service and walked away from it... 3 hours later re-enabled MoCA and it is working fine.
Now I have the issue that it appears both wireless and MoCA are on at the same time! The TiVo says it is on MoCA, but the router sees two IP addresses with the same MAC address.
going to restart it and see if that fixes it
Edit: never mind. The second IP is apparently the stream module