I have a dell server in my basement that is running server 08 r2 datacenter. this is where I have my iTunes library (about 4tb). I just transitioned all of my library to this machine, it was on a win 7 tower. since I moved it over my "shared libraries" grey out after a short time of no use. I set the power management on my NIC so it doesnt sleep. I hard wired both of my ATVs and my server to my Airport Extreme. I can not seem to figure out why it loses the hand shake. if I go into frontrow on my iMac it sees the library. ANY suggestions???