Good day! I have an Marantz SR6006, a PC with Windows 7, and a Mac with OSX 10.6. I have an issue with my setup. I have narrowed it down to be the Marantz Receiver as the perpetrator, but now I need some help. I have done a lot of research on this, and only found a similiar issue with an Iphone not seeing the Airplay receiving device. (in theory the same problem, different player/controller-----> iphone/computer) Basically after sitting for a while (i.e. being shut off, standby for a while...whatever) both the PC and Mac are unable to find the receiver on the network, but only in Itunes. In windows 7 I see the device under control panel, and it is functioning properly. But, when I open up Itunes, it is nowhere to be found (I don't have an Airplay symbol). In the past I got around this by rebooting the devices...really until the Airplay symbol randomly shows up. But I am very much so over that process, and I am looking to fix this problem. This is how the individual with the Iphone was able to fix it....up until he got tired of rebooting it every time he came home. So bottom line is it works some of the time. I see no pattern whatsoever which would cause this feature to go out. The receiver, has up to date firmware, the PC and Mac both have the latest Itunes. There are no restrictions on my router, and everything is "allowed" to be shared through window's strict sharing policy, so I am at a loss. Any help would be greatly appreciated.