Short story: took two weeks to get Playmaker to play. It now works fine, but it took the weirdest trick in order to get it to work.
Ordered a brand new Playmaker together with some "demo" BeoLab 4's from a B&O corporate-owned store. Connected directly to the Playmaker, gave it the password to our home network (which uses a full-size Apple AirPort/Time Capsule router). The Playmaker connected to our home network. Went to an iPhone, hit Airplay, the status lights on the BL 4's went from red to green... and silence.
You could see the song "playing" on the iPhone, as the timer continued to run. You could hear the BL 4's make slight noise as the volume was increased from a Beo4. But no song was played.
Tested the BL 4's on our home Master Link network (2 audio masters, three rooms), those work fine.
Connected the Playmaker to a pair of BeoLab 6000, same symptom: status light went from red to green when "playing", but no sound. Mute/volume sensors on Playmaker seemed to work, but to no effect.
Dealer blamed the AirPort! Said they use Cisco. Well, guess what, we have a Cisco RV220W at the boat, so on the weekend I went and got it.
Exact same thing happened: green light on AirPlay play, but no sound.
Tried called the dealer on a Sunday, got voicemail.
At this point, I was pretty upset. But I still wanted to listen to the new setup. So I plugged an RCA Line-In from an iPad and into the Playmaker.
The Playmaker sputtered for a couple of seconds... and started to play. Well, I removed the RCA and hit AirPlay... and it played.
Feeling on a roll, I reset the Playmaker and again had it join our normal home AirPort... and it plays!
Look, I was very methodical and tried every possible option. I find it ridiculous that the software or the hardware had some sort of bug and it took an RCA connection to get the thing to work.
I still wonder... why did the Playmaker sputter when the Line-In came in? It's a digital device. "Sputtering" should never be part of the equation.