I was told that it does do some communication back to the company to verify user information. Some versions of the player on the smart tvs are housed on the web so all validations are through the internet. While my samsung app appears to be housed on the TV, I do know i have not been able to view any of the videos using Plex when my internet was out. When we are on DSL and again when we were on Hughesnet. While it may just be a handshake type traffic to validate the authorization to use it, or if it does use much data I am not able to determine as I am not able to monitor what traffic is going over the modem. I downloaded the Hughesnet usage meter but it has never worked, keeps telling me a java error.