Can't get subject to work consistently. Some times I can access AirPlay on my Macbook Pro. On my iPhone (4S) and my iPad (3rd gen) I can't find the airplay icon.
The Home Sharing option has never worked - I have checked the firewall (it's off) and all units are connected to the same wireless network (a wifi extender)
Any ideas on how I can get to use the full potential of my new "toy" (The Apple TV 3rd gen)