Re your last message, I probably set up DLNA server because Bel Canto instructed that in the REFStream manual (I don't have it handy to check).
I went to Tools > Options > Media Network and I can uncheck "Use Media Network to share this library and enable DLNA." but I don't know if this is what you want me to do. Please send exact instructions to connect by accessing the files on the NAS.