Yes I experienced this with eero. Phono stages are especially sensitive to this - they’ll pick up and amplify this garbage and you will hear it thru your speakers. Just run a longer Ethernet cable and move your router away from components and cables.
Tube interference from router
Anyone experience interference problems from a router?
I hear noise from a tube on one of my amps and when I turn off the router it goes away. Aside from replacing the tube, the router may be interfering with other things and wondered if anyone has any way to shield a router. Must be the Wi-Fi signal because I can leave the modem on no problem.