Apologies if this has already been answered, but I have genuinely looked for an answer in this forum and others and haven't found one. Anyway, I have just moved house, and have gone from having both my PC and ATV wirelessly connected at the old place (no problems), to having my PC connected to my router via ethernet, and ATV connected wirelessly. When i run iTunes, the ATV cannot be detected. If I run an ethernet cable and connect the ATV to the router via ethernet, there are no problems - it is instantly recognised in iTunes and can sync and stream without any problems. The ATV is definately connected to the wireless network properly (i can download online contect from the iTunes store), it just can't been seen in iTunes. Are there any known issues with a wirelessly connected ATV, ethernet connected Windows PC setup? My wife is getting a little angry about a 10 meter ethernet cable running across our floor My router is a Dlink DSL-504g if that helps.