publish problem

I have a netstream publish problem on the client side...the first time I call a custom event function which connects the netstream everything works fine but when i call the function a second time it dies silently ...however if i use a button click instead of a custom event function then the netstream connects properly here is the problem code

private  function setStream(e:SendStreamEvent):void {
               trace("rePubID = "+rePublishID1);
               if (rePublishID1==0 ) {
                    trace("publish success"+e.num1[0]);
                    stream0.publish(e.num1[0],"live");
                    dispatchEvent(new DefStreamEvent("TYPE_DEFSTR",false,false,e.num1[0]));
                    //con1.removeEventListener("TYPE_STREAMNUM",setStream);
               } else if (rePublishID1==1 ) {
                    
                    stream0.publish("private","live");
                    dispatchEvent(new DefStreamEvent("TYPE_DEFSTR",false,false,"private"));
               //pub = new NewPublisher(nc2,con1);
               } else if (rePublishID1==2) {
                    stream0.publish(e.num1[0],"live");
                    dispatchEvent(new DefStreamEvent("TYPE_DEFSTR",false,false,e.num1[0]));
               }