Comodo And Tivo Transfers

When I installed the Tivo software for transferring files, Comodo asked for permission a few times and I granted it each time. The transfers fail after anywhere from 3 minutes to 30 minutes. Tivo Tech support asked If I opened up the right ports for Tivo. My answer was that Comodo asked permission and I granted it. I don’t know whether or night the right ports are involved. So, my question is…if Comodo lets traffic initiate and proceed, is it possible the it would at some point close the connection?
Thank you