Hi Paolo,

Unfortunately in the log file attached there is no evidence of any client session, and this is itself already strange.
Please could you re-run your page after changing this logger settings (lightstreamer_log_conf.xml):

Code:
	<logger name="LightstreamerLogger.requests" level="INFO"/>
	<logger name="LightstreamerLogger.subscriptions" level="DEBUG">
	<logger name="LightstreamerLogger.pump" level="DEBUG"/>
Regards,
Giuseppe