Apple TV connectivity with Vizio

For a long time now, my Apple TV seems to lose connectivity with my Vizio, or something…

The Vizio will regularly reboot and then then eventually come back on and whatever I’m watching on the Apple TV resumes (usually the audio comes through long before the video meanwhile displaying No Signal from that HDMI port). Sometimes this happens as often as every 4-8 minutes, sometimes I’ll go a few days or a week with it not happening at all and some days it does it consistently every 10 minutes or so all day. I’ve seen others post about this I’ve found no solutions or explanations yet. I’ve tried the usual. I’ve rebooted the Apple TV, rebooted the Vizio. Made sure to update software on both. I’ve done a factory reset on both, too.

please help.