I have a time capsule and a airport express. the exprerss is only for getting music to the stereo. it is part of my regular wireless network with the same password and settings. if itunes has the airport express set as the the playback source and the computer goes to sleet most of the time itunes will not even see the airport express after waking up. I thought turning off airport and closing itunes turning airport back on and then opening itunes would work but it does not itunes will not find the express. I end up having to reboot to get it working again. any idea's? I tried resetting the airport express but it did not help. the computer is also connected to the time capsule by Ethernet.