Sometimes you may lose the audio connection between your speaker and your audio device. This may be caused by several reasons including:
- First thing is to make sure you have the newest firmware installed. Out of date firmware can cause playback issues.
- Your router, speaker and audio device are no longer within solid range of each other.
- Heavy data traffic (such as large downloads, streaming movies etc.) is causing data congestion on your network router.
- The streaming service you're listening to (eg. Pandora, Spotify, Last.fm etc.) is experiencing heavy usage, thus dropping audio connection periodically. Your audio application may also occasionally lose AirPlay connection to your speaker.
To fix this you normally only need to either restart your iTunes/iPod player (close and restart the player, do not just minimize it) OR select and de-select your AirPlay speaker in the AirPlay menu on your device. In many aspects the AirPlay technology is still in its infancy (especially on iOS) and thus these things do happen once in a while, but are normally very easy to correct.
Please also note that WiFi connections may suffer from minor audio dropouts from time to time due to other devices in your home influencing your WiFi network traffic.