You probably need to use the VPN to ensure that your connection to the server is protected and encrypted.
I wanted to let you know that today we released the Tableau Mobile app for Workspace ONE. With the release of this app (iOS only), on the platform powered by AirWatch technology, we are empowering IT administrators to secure enterprise data at all times, while users visualize, analyze, and leverage data at scale from their mobile devices.
Please use the app, advertise and evangelize it and if you have any feedback, do not hesitate to contact me directly - rmotwani ^% at ^% tableau ^% dot ^% com.
Rahul - Product Manager, Enterprise Mobile