Cannot re-authenticate in the same session.

I get this error when I call the Java server code sample that was included in the AFCS download. I am calling the getAuthToken function on the AccountManager object. This error only occurs when I open another tab in my browser and try to get another token. We have wrapped the Java sample in a LiveCycle process and the channel is setup as follows:
var ro:RemoteObject = new RemoteObject( "myDestination" );
var cs:ChannelSet = new ChannelSet();
cs.addChannel(new AMFChannel("remoting-amf", "http:myServer:8080/remoting/messagebroker/amf"));
ro.setCredentials( "Administrator", "password" );
If I remove the setCredentials when I do not already have the browser open the I get a different error. If I remove the setCredentials when I try to open another tab I do NOT get the error mentioned above.
So what is it about the setCredentials that is making this work only the first time and not when I try to open another tab in my browser?
Thanks in advance for any help.
-chris

Looks like this is a fairly common problem when using Flex remoting and LiveCycle. I found one explanation here:http://michael.omnicypher.com/2009/01/authentication-with-flex-remoting-in.html but you can look for more.
I am not familiar with remoting used this way so I can't really help with that.
Regarding SSO, I would say yes and no. The purpose of external authentication is to leverage your authentication system and user database and give you a way to manage what privileges / permission your users will have once they enter a room.
So, in that sense yes, external authentication is a mechanism to do single-sign-on between your main web application and an LCCS room.

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