Cannot conect to my Yamaha to play music

I bought the My Cloud Home so I could put all my music onto it so I could play it through my Yamaha CRX N470D Receiver.
But when I attempt to find it on my Yamaha it will not find my cloud at all, I can connect to my laptop with my Yamaha as easy as anything. Am I doing anything wrong I have no idea…
I have heard that Plex will play my music files but will this onl play on my phone or laptop as I want it to play through my Yamaha Receive.
Any help would be very much appreciated.

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You’ll probably need to Configure Plex and Enable Plex DLNA Media Server.

https://support.wdc.com/KnowledgeBase/answer.aspx?h=p1&ID=18937&lang=en&p=1101