A:Answer I ran into a problem with it when I tried putting the Dish receiver on the 4 port connector. The dish receiver is always transmitting a screen saver. I suspect that you're having a similar problem with whatever is on port 1, so it's always automatically switching back to port 1.
I had to put the Dish receiver directly to the TV at HDMI 1, then used the TV's HDMI two for the 4 port connector, and hooked up the Reviever, Fire TV, and Apple TV to the 4 port connector.