Hi Jeffery Check what else they have open when they access your application. There could be another J2EE application that does not scope it's session cookies correctly. We have had ongoing problems with SAP portal servers scoping session cookies across our whole domain, rather than scoping to the server they are running on. When this happens, you get a session that does not belong to you. Ask them to browse their cookies and tell you the scope (there are many Firefox plugins that will make this easy).
Personally I think it is a shortcoming of the J2EE Servlet specification - all session cookies are named JSESSIONID. This is not honoured by some IBM products, but Tomcat adheres faithfully to the spec. Regards Ron ----- Original Message ----- From: Jeffrey Janner To: Tomcat Users List Sent: Wednesday, February 24, 2010 11:48 AM Subject: RE: Session id is invalid occurs randomly ******************************* NOTICE ********************************* This message is intended for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by reply or by telephone (call us collect at 512-343-9100) and immediately delete this message and all its attachments. ------------------------------------------------------------------------------ --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org