Yeah I was able to get it going again. it was a pain. From what I can tell the card needs to be unpaired from the existing tivo either by Comcast doing something, or by pairing it to another / different Tivo and then pairing it back to the Tivo you want. Luckily I had a an old Tivo laying around I was able to pair it to and then use that host id and data id in the activation site. This took a bunch of trial and error. I think I had to pair it like 5 or 6 times to that old host id and data id, in order to get it to finally take and not keep changing on me in the actiavation web site. It kept switching back the data id to the old one it was paired to when I would refresh the activation page. Once it was paired to the old Tivo, I used the upgraded Tivo host id and the new data id it gave me and did the same thing and it finally took. There is something with the Comcast systems during the activation process where things can get out of sync and the host id and the data id do not stay associated with each other through their whole process from the activation page to the headend. Got the idea from here: https://www.tivocommunity.com/community/index.php?threads/hd-replace-on-my-roamio-pro-without-loosing-cable-card-pairing.574373/page-2#post-12102154
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