Hi, I use my time capsule as my main wireless net connection. I also have an airport express in my house for airplay in another room and an Apple TV for airplay etc... If I connect to my Time Capsule network for internet on wireless I cant seem to send music to my airport express, although it is still visible. If I connect to my airport express from my computer it will then appear as a device for airplay and my Apple TV, Computer and Express will all work... I do have a work around of just connecting my computer with Ethernet for net, then using my wireless on my mac to connect to my express although this is not ideal.... Would rather connect to my time capsule and have all devices visible... Thanks!