How to see a media server on the network

hI,
I’m very new to the RS250 but I have successfully run Mediamonkey server from my PC to Volumio on a raspberry pi for a long time. I cannot see the server from the RS250. If I look at bubbleupnp on my phone, I can see that media monkey server is running and broadcasting over my network. How can I set up my RS250 to see it please? I have activatied SMB and I can see the RS250 from my PC and drag files to the hard drive.