Hey Eric, just an FYI for ya, and for me actually. I purchased a iFi power cord. I tried that cord where the Orbi is (has been). Some minor change but didn’t remove the fluttering phono stage meter. Then I moved the Orbi away and tried both the original power cord and the iFi power cord. No change in the fluttering meter at all. Same as when it was adjacent to the system.
So, I just said screw it. I unplugged every Orbi in the house and complete turned off all the WiFi. No change is the fluttering meter. So, it must be something else. What I don’t know. It solved the problem in the old house, but not this one.
But, after all the dinking, the meter doesn’t flutter as drastically as it did. So, I’m at a loss for now.