Netconnection issue in IOS

Hi,

I have made an application for video streaming using adobe air for IOS. when running application on desktop its running fine. but when I publish and install on IPAD after few minutes the connection drops.

Code to make connection is:

var m_nsPlayer:NetStream;

var  m_nc:NetConnection;

m_nc = new NetConnection();

m_nc.connect(server_URL,publisherName);

m_nc.addEventListener(NetStatusEvent.NET_STATUS, onNetStatus);

private function onNetStatus(event:NetStatusEvent):void

{

    switch (event.info.code)

    {

       case "NetConnection.Connect.Success" :

       {

               m_nsPlayer = new NetStream(m_nc);

               displayPlaybackVideo(m_publishName,m_muteSound);

       }

       break;

    }

}

public function displayPlaybackVideo(publishName:String,muteSound:String):void

{

  m_vidPlayer.attachNetStream(m_nsPlayer);

  addChild(m_vidPlayer);

}

Its running fine when application is debugged on windows but when running on IPAD video is getting displayed for few minutes and then connection get closed automatically. And also each time when video get started displayed "NetStream.Play.Stop" status get occurred.

For connectivity I am using rtmps protocol. I am using licensed FMS 4.0.

please help.

Thanks

Nitesh Kumar