Windows media player embbeded in winforms not playing network files continously

Hi,

I just included a windows media player in a winform (using wmplib dll). And this form was called in an WPF window to play network videos(Playing videos from the server, which is a growing video file). I found that it will play only till that time stamp to which it was there when play button was clicked. After that the video file grows, but is not playing that portions in the player. But when it is seeked to the last position for 2-3 times repeatedly the player will play continuously as long as it reaches the end of stream even if it is a growing file. I found it really weird. Any suggestions to help me out... 

Thanks in advance.