Intermittant blank screen for 2-3 seconds - DirecTV

I have a Genie with 3 Mini's. Intermittantly, the screen goes black for 2-3 seconds (lose audio also). The longer I allow it go go on, the worse it gets. Sometimes it happens every 3-4 minutes. I can power cycle the genie and it will work fine for about 24 hours and then start acting up again.

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