First make sure your NAS device is powered on and connected to the same wireless network as your Cobblestone and smartphone/tablet. Then ensure that DLNA is enabled in your NAS Device.
1. Tap the Muzo icon in the top left of the Muzo app. Select My Music, and select your NAS device.
2. Select music to stream from the NAS device to your Cobblestone.
If you have any issues streaming music from your NAS device, please check that your firmware is up to date.