If the OS3 is in AP mode, with the LED showing white, then it cannot be connected to your WiFi network as it is creating its own called OPENSPOT3, you would need to scan for it and connect to it to configure it. That is the 192.168.99.1 address.
If you return it to normal mode then the LED should be blue and then blue/yellow or green if it can see the server in your connector. If it has been allocated 192.168.1.16 then you should be able to connect to it there, but it isn't responding so it isn't connected to your WiFi AP/router.