Audio will play but video won't, or video will play but audio won't Make sure that the computer playing the content has a sound card with which to play the audio. Most likely, the content being played uses a codec that isn't installed on the computer. The easiest way to ensure that all the codecs currently supported are on a computer is to re-install Windows Media Player from the Microsoft site . If Internet traffic is heavy, the stream might not play properly. Keep trying the cam until you get a clearer connection.
Content is compressed to play over constrained bandwidth networks using codecs.
The content creator's codec selection greatly influences the quality the user sees or hears. For example, if the content creator prioritized audio quality over video quality or frame rate, the user may enjoy the audio but be frustrated by the video performance issues. It's all about managing bandwidth . You are either experiencing network congestion or attempting to play content encoded for a bit rate too high for your current bandwidth. Windows Media Player buffers because it is waiting to receive more data to play back.