I have been having the same problem and I have not even had Kaspersky for an entire day. I talked to the chromecast support for nearly and hour before getting cut off and never got any kind of solution. i then had come to the conclusion that it had to be Kaspersky causing the issue. i have scrolled through the forums. i have tried many if not all of the solutions that are given. all i am looking for is some kind of solid solution. or is this something that is going to have to wait till an update from either provider?