no airplay symbol on macbook pro
i have a apple tv 2nd generation which i can airplay to from my iPad 3rd generation and from my iPhone 5s. i have a macbook pro mid 2012 with yosemite. recently i have had an issue with airplay to the apple tv? it always used to work smoothly from this mac to the apple tv but something has changed. i do not see the airplay symbol in the top bar. i have tried the apple troubleshooter to no avail.
i am on the same network.
i have tried hardwiring the apple tv to my time capsule router and i have tried leaving it just on wifi?
i have turned off the firewall and turned it on again?
not sure what to try next?.
MacBook Pro (13-inch Mid 2012)