I'd been using my RV router (gen 2, rectangular dish) and Starlink ethernet adapter with a generic router for a while and it suddenly stopped working. I was NOT using bypass mode as I wanted both routers enabled for best coverage. Also, my Sonos system will only work with my older 2.4Ghz router.
I suspected that my old router was shot so bought a new one. No go! I tested the ethernet adapter with a laptop and that works fine. Any idea what could be happening?