This has happened to me numerous times. I'll be watching a show that has buffered. I had to pause it for whatever reason. When the top of the hour hits and a new show starts the screen will go dark and then I'll get a can't communicate with the gateway message. I hit ok and I get picture back but the buffer is gone and I miss the end of the show I was watching. I can switch to another channel that was buffering and it's all still there. Just the channel I was watching is gone. It is extremely annoying!