Hi All,
it's been a while, but I've had to do without my Macbook because of a motherboard failure. Back from repair now, and I must say it's been revealing.....read on please.
previously I streamed Airplay to my Marantz Na7004. Whenever the BDP1 got switched on, Airplay was kicked out and I had to restart iTunes over and over to see the na7004 in available speaker-options again.
Chris mailed me during the last two weeks, how I was doing, and because of my Macbook being in repair I was kinda busy trying to get my work done on an older Windows machine, so did not really get to answering Chris. Still, something was different...I honestly got the feeling streaming worked a lot better, and I had not experienced Airplay getting kicked out of the air. But, because of lack of real testing time, left it there.
Now that my Macbook is back again, I retried. And after a couple of minutes, yes.... Airplay is gone, with the BDP1 in the On state, whether playing or not. (in the Off state, nothing goes wrong, Airplay plays nicely)
Having just put my Windows laptop in the off-state waiting for another emergency to have to use it again....., I tried my recently updated Ipad2. And lo and behold, streaming works perfectly. No getting kicked out of the air, and playing all morning. Starting and stopping, pausing or changing songs does not break the connection. As it should be. Happy again, switching between BDP1 and Na7004, both feeding the BDA1.
My initial feeling was correct, and even streaming my iTunes Macbook collection through Homesharing from the windows machine to the Na7004 works fine.
Finally I decided to try streaming from my Macbook directly again, and after a minute or so, Gone!
Conclusion: Something's definitely wrong in the way the Macbook, or iTunes on the Macbook, connected to my Na7004 through Airplay, and the BDP1 work next to each other .
But only when the BDP1 is switched On.....To be completely precise, only when actually playing in iTunes. If iTunes is running, but not playing anything (e.g. when browsing the iTunes store), Airplay stays in the air (from the iPad or the windows-machine). The na7004 gets grayed out in the options:

Seems to ridicoulus to be true, but alas it is.
Please Chris, hope you still understand my description, and even more, hope you can find a solution....

Thanks, Marius