NetStream and rtmpe issues

programming flash
1

If any one can shed some light on this I am trying to stream from a rtmpe media server but for some reason the standard connect wont allow.

Many thanks

nc.connect(null);

var ns:NetStream = new NetStream(nc);
ns.addEventListener(NetStatusEvent.NET_STATUS, onStatusEvent);

function onStatusEvent(stat:Object):void
{
    trace(stat.info.code);
}

var meta:Object = new Object();
meta.onMetaData = function(meta:Object)
{
    trace(meta.duration);
}

ns.client = meta;

video.attachNetStream(ns);

ns.play("rtmpe://mediaserver.net/a1218/o18/StreamSample_interview.flv");