This is from Wikipedia.
- Digital Media Server (DMS): These devices store content and make it available to networked digital media players (DMP) and digital media renderers (DMR). Examples include PCs and network-attached storage (NAS) devices.
- Digital Media Player (DMP): These devices find content on digital media servers (DMS) and provide playback and rendering capabilities. Examples include TVs, stereos and home theaters, wireless monitors and game consoles.
- Digital Media Renderer (DMR): These devices play content received from a digital media controller (DMC), which will find content from a digital media server (DMS). Examples include TVs, audio/video receivers, video displays and remote speakers for music.
- Digital Media Controller (DMC): These devices find content on digital media servers (DMS) and play it on digital media renderers (DMR). Examples include Internet tablets, Wi-Fi enabled digital cameras and personal digital assistants (PDAs).
When you build with DLNA components, you should be aware of the different roles.
Your NAS should have the DMS role
MC has the DMC role. (Actually it can have all roles, but that is another story)
and your receiver has the DMR role.
Then MC can access your NAS and tell it to start streaming to your receiver.
You should start with enabling DLNA in MC then enable your receiver. When you can do DLNA to your receiver, you can include your NAS.
And please consider storing music in .flac files as they are much more manageable than .wav files. You can setup this in Tools, Options, Encoding, Encoder: Flac Encoder
Don't mind the flac encoder settings, default is just right. (Even though the setting is called 'Quality Settings' it is only about compression and NOT about sound quality)