I have the AppleTV connected via WiFi. I tried AirPlay via WiFi using my iPhone and it mirrored perfectly. The next day, the AppleTV was sleeping before I turned it on using the Apple Remote. However, the option to mirror my iPhone (or even my iPad and MacBook) is not there anymore! I tried using the AppleTV via the remote and works fine, it's just that the AirPlay option is gone.
Why is that?
Unplugging the AppleTV from the power source and plugging it back in got the AirPlay option back. Is there a way to make sure this doesn't happen again ?
Edit: Using an Ethernet cable fixes the problem, however I do not wish to keep it wired. Why would the AppleTV have problems only on wireless?