Currently Being ModeratedJan 22, 2012 2:28 PM (in response to micahelfromlubbock)
There is no seperate app.
Not all apps support AirPlay.
In ones that support it, you will only see the icon if you are connected to a wifi network with a device on the network that is AirPlay compatibl(appletv).
Did that answer it?
If not-more info needed.
Currently Being ModeratedApr 13, 2012 5:59 AM (in response to micahelfromlubbock)
To fix this permanently:
go to your apple TV network settings and write down your apple TV IP address.
log in to your router settings (usually 192.168.1.1), and go to the option for port forwarding.
On a linksys router for example, you'll select 'port range forwarding'.
Open the following ports and assign them all to forward to the IP address on your Apple TV
save the settings, reboot your router, then turn wi-fi off, then back on for each device you want to work with airplay.
Currently Being ModeratedApr 24, 2012 5:30 AM (in response to micahelfromlubbock)
If anyone would like to know how to fix this, I discovered the answer.
I have no idea what IPv6 is and I care not, but apparently now, all of a sudden, Apple makes iTunes talk to Airport Express units using IPv6. However, it didnt bother to make the Airport Express units expect this first, so iTunes can see the Airport Express, but it cant talk to it.
Anyway, I found that you have to manually go into your Mac settings (scary stuff if you are a non technical person like me) and turn off IPv6.
To do this, go to "Finder > Go > Utilities > Terminal"
networksetup -setv6off Wi-Fi (hit enter)
networksetup -setv6off Ethernet (hit enter)
and magically your iTunes will talk to your Airport Express units again.
I presume at some point we will have to undo this as technology moves on and everything uses IPv6, so when that happens go into Terminal again and type
networksetup -setv6automatic Wi-Fi (hit enter)
networksetup -setv6automatic (hit enter)
Thanks Apple for that.