I have a Pioneer VSX-42 that I bought about 5 years ago. I have it networked via a powerline router, and connecting to WiFi works fine (ie, using the iPhone as a remote). However, my iPhone can only find the receiver on AirPlay when I am in connected to the originating router. To be more...

Sigh. Go back to a few weeks ago, and everything was fine. Pioneer VSX-42 connected to my network via Ethernet. Mac connected to the network via Ethernet, running iTunes iPhone connected to the network by wireless I could send music from iTunes on my Mac to the VSX-42. Joyous. I could...