I just wanted to add my name to the list of folks experiencing these random 1-2 second audio dropouts. I just got the X1 system installed on 9/10/16 and have had these problems ever since. I do have an older Denon receiver connected by HDMI to the X1 box. It has been happening on both Live and On Demand programs. STB version 2.4. It's showing a green light around the power button, not blue (havent yet checked the manufacturer).
I will keep an eye on this thread for a while, then probably request a different X1 box.
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