My apple TV won't show up on other apple devices for airplay

I just got the Apple TV 3 and it won't show up on any of my devices.

I've reset the router and modem.

I've made sure the TV and other devices are on the same network.

I've made sure Airplay is "on" on the TV,

I can see my other devices but not the Apple TV.

How can I fix this?

View the original article here