Strangest HiFi Issue I've Ever Seen

[jabbr]

Are you using fiber on this network? What are all the copper lines that go into your audio area? How close is the bathroom to the audio area? Sounds like a burst of rf / common mode noise

[jabbr]

1 hour ago, The Computer Audiophile said:

I have fiber and copper in this network. Bathroom is roughly 6 feet from components. 

Is it possible to remove copper Input into audio area?

 

That would test whether common mode spike is coming through Ethernet.

 

I am assuming that isolation transformers are isolating AC input.

[jabbr]

21 hours ago, The Computer Audiophile said:

Yes, I certainly can do this easily. 

If that doesn't solve the problem, and assuming that your isolation transformers are working, then something else in your system is acting like an antenna for an RF pulse, possibly the device itself. Eliminating the copper Ethernet eliminates that cable as the possible antenna. Any of the cables going into or out of the component that needs rebooting might be the culprit or the housing of the component, or the board of the component itself.