Here's my set up, 3 x ATV3 and 3 x ATV2, two are wireless (both ATV2) the rest are wired. Router is an Airport Extreme and this is extended with three Airport Express'. It seems I can have at least 3-4 ATV's accessing home sharing, but at least two always state they cannot connect to the library, I find this a little strange as my screen saver photos which access the home share still work. I have tried the following All ATV's are set to never sleep. Completely resetting the network. Doing the above and disabling/re-enabling Home Sharing. Disable HS and then close down itunes, open and re-enable. Anyone having a similar issue or can suggest another work around?