Hi Wolf-Dieter
I found the log file. There was actually an error message. (It's quite long. :| )(I can't add a TextFile, can't I?)
The main error message is:
2013-03-25 07:55:34,254 ERROR [org.granite.messaging.webapp.AMFMessageFilter] (http-0.0.0.0-8080-2) AMF message error
ClientAbortException: java.net.SocketException: Software caused connection abort: socket write error
I'm afraid that we're locked on this timeout. -.-
michael