Have just installed AirServer on my Mac, and had it working perfectly, with my iPad mirrored on my MacBook Air screen. However, later in the day this function stopped working, with the Air Server app running and connected, but seemingly unable to open a mirroring window. I then tested the iPad with my AppleTV, and it appears to have the same issue - the Apple TV recognises that an iPad is connected by AirPlay, but setting it to mirror does nothing. There seems to be some issue with the iPad broadcasting its screen. Can anybody suggest anything that might be causing this? Thanks in advance.