How to use roon with volumio?

Question about roon.

I have a asustor Nas and installed the room plugin and also set the shared folders on nas.

I installed the plugin on volumio.

Can I now use my Android pad to stream from my nas to volumio?
I opened an account on roon and have the app but the app don’t seams to find my volumio.
I don’t find any guide to do this.