SMART WI-FI ANDROID APP

If you want to access your WRT1900ACS from your smartphone via 3/4G/Wi-Fi and have already linked it to a smart Wi-Fi account you can download and use the Smart Wi-Fi app.

This app gives you control over several settings that have to do with guest access, parental controls, media prioritization, wireless connectivity and security.

The app points you to other compatible apps like Netproofer which unfortunately is not free (not that $0.99 is far from free).