We have the V6 box and it is connected with wires i am not technically minded so don't know what it is called, and i dont subscribe to netflix so not sure about that but youtube is ok it seems to be just hayu, and it may be coincidence but seems to happen when the box has been on for a while on hayu channel starts off ok then starts freezing and eventually stops playing.
Thank you for the update, I can understand the frustration with an issue such as this.
Were you able to try watch the app on a different device? As on this forum post here we were made aware of issues with the Hayu application itself not only when ran through our service. If you can check this through an alternative device just to be sure and let us know please.