OS X El Capitan Airplay missing
Sunday January 31 2016
Today successfully set up, again, TV with apple TV and IMac (mid 2011) all good but very slow. Apple TV is up today.
Airplay icon on top of screen was present..Play was very slow and lagged. Thought to reboot, computer, reset router and start over.
Airplay icon gone, checked preferences, can not change them, can not turn Airplay on only button is off.
Checked Firewall..not sure what to check read tons on apple support.
Is this a BUG a Glitch?
Now you see it, now you don't.
Help please
Vsby...thanks
iMac, Mac OS X (10.7.5), Version 10.11.3 EL Capitan