Help why is locally persistent remote shared object not created?

If I run the following script, a client sided RSO is created on the server.

stop();
var nc:NetConnection = new NetConnection();
NetConnection.defaultObjectEncoding = ObjectEncoding.AMF3;
nc.connect(“rtmp://www.site.com/SOSample/”);
nc.addEventListener(NetStatusEvent.NET_STATUS, onNetStat);
//Als de verbinding geslaagd is: verbinding maken met RemoteSharedObject
//>>> LET OP: verbinding is alleen geldig binnen de curly braces van de function ‘onNetStatus’<<<<<<<<<<<<<
function onNetStat(e:NetStatusEvent):void
{
if (e.info.code == “NetConnection.Connect.Success”)
{
var SO_Client:SharedObject = SharedObject.getRemote(“testRSOLP”, nc.uri, true);
SO_Client.connect(nc);
SO_Client.addEventListener(SyncEvent.SYNC, onSyncGluc);
}
if (e.info.code == “NetConnection.Connect.Failed”)
{
trace(“FAILED”);
}
function onSyncGluc(se:SyncEvent):void
{
if (se.changeList.code == “clear”)
{
trace(“RSO to be created”);
}
else
{//if(se.changeList.code == “change”)
SO_Client.setProperty(“Glucose”, “OK”);
SO_Client.setDirty(“Glucose”);
}
}
}

HOWEVER, if I change the persistence setting from ,true to ,"/" in order to get a locally and remotely persistent RSO, no shared object is created at all…

Does anyone know what could be wrong?