Problem:

Why do I see the entry "SilkCentralIssueManager 4.0 license for user "user" - Given license key is not valid or has expired" in the frontendServer.log?

Resolution:

ANSWER
----------------------------------
This message informational and is reported if the Application Server is restarted without restarting the Frontend Server. Users on the Frontend Server are then trying to work with licenses that no longer exist on the Application Server, hence the message is reported, and a new license is checked out.

It may also be reported, if a user idles for more than 3 hours but keeps open a browser window connected to Issue Manager. In this case the Application Server checks in the license, however, if after this time the user resumes working with Issue Manager you will see this error reported and then a new license will be checked out.

Please note this does not result in any usage issues.