Solved! No audio. Dish box, Pioneer receiver (VSX-321) and an Epson projector connected by HDMI cables

Sep 12, 2018
Have a set up consisting of a Dish box connected to Pioneer receiver VSK-321) connected to Epson projector by HDMI cables that was working. Suddenly, the audio has stopped. It will come on sometimes and go off all by itself. Any ideas on what could be the problem? This is driving me crazy. I have replaced HDMI cables, but that did not fix the problem. I have tried other sources such as XBox One. Same result. Help.
I suspect the the problem may be in the receiver HDMI switching.
You can get audio by running digital audio from the Dish box and Xbox One to the receiver. You will need to reassign the audio in the receiver input set up menu.