I've set up a Roamio and am trying to transfer a number of shows from my Tivo Series 3. The Roamio is using MoCA and the Series 3 is connected to my home network via Ethernet. I was able to transfer a number of episodes of a television series from the Series 3 to the Roamio. But a few of the episodes cannot be transferred.
When the transfer fails, I see the following message on the Roamio: "There was an error. Your request could not be processed. Please try again (Messages # 86). Sorry, you can't watch this program now, either because the Tivo-HD DVR is no longer available on the network or because the requested program could no longer be found..."
This isn't a copyright issue. I am able to transfer other programs of the same series. I've rebooted both Tivos as well as the router.
At one point I was able to schedule these shows to be transferred, but I had to cancel the transfer to deal with another Roamio issue. But several other shows were also on the transfer queue and had to be canceled, and these shows were later successfully transferred.