Hi,

It might depend on the browser in use; be sure to call lightstreamerClientInstance.connectionOptions.setC ookieHandlingRequired(true) on the client
See
http://www.lightstreamer.com/docs/cl...ndlingRequired
and
https://docs.google.com/a/lightstrea...rive_web#gid=1


If still in trouble verify that the cookie is sent by the browser (check the creatre_session.js request) and get back to us.