Advertisements I have Comcast cable service in San Francisco, for a Premiere XD and a Roamio Plus. About 2 weeks ago, XFINITY on Demand stopped working on the Premiere, and a few days later it stopped working on the Roamio. The moment I try to launch the app, I get the message: "Can't Start Application The TiVo box was unable to start XFINITY On Demand. (V313) Go to TiVo Central > Settings & Messages > Settings > Network > Connect to the TiVo Service. Wjen the connection is complete try to open XFINITY On Demand again. If you continue to experience this problem, contact TiVo Customer Support at 1-877-367-8486." I contacted TiVo support. They had me connect to the TiVo service and reboot. When that didn't fix the problem, they said to call Comcast. Comcast said they've never seen that error code before. They re-paired both cablecards anyway, and it did nothing. They're sending out a service tech with replacement cablecards next week, even though it's highly unlikely that both cablecards went bad. I suspect it's a server problem, either with Comcast or TiVo. Has anyone else experienced this issue?