@siracusa FIOS? I had ghosts in the machine to specific IP blocks with an otherwise rock solid FIOS connection. For cost reasons switched to inferior Xfinity but the ghosts also disappeared. Nothing else changed in the home network (which was Eero except for the gateway router). Voodoo nonsense, except it really happened.
@soffronoff It happens over cellular too. No idea what the deal is (and so far, no one I’ve been able to reach at Apple does either).