If you’ve got an Orbi RBR750 and that purple light keeps popping up, you already know the pain. It means that you are not connected to the internet. The WiFi signal may still show up on your phone or laptop but it is of no use without the internet. It is just a purple glow staring at you. https://orbitloginnet.com/orbi-rbr750-keeps-disconnecting-purple-light-issue/