Airplay Yamaha CRX-N560d speakers working on iPad Air 2 but not on Macbook Pro 2017
Yamaha did release a firmware update in December 2017 and since you've been having problems with this for a while it'd be worth checking whether you actually have the latest firmware for your Yamaha CRX-N560D.

If your firmware is version 1.17 (or above) then you're up-to-date. If not then go to the CRX-N560D Firmware Update Version 1.17 page.