Revoke Stale Licenses
If a license is stale, you can revoke it by sending the RevokeStaleLicenses action. A stale license is one that has not been issued or updated within a specified number of seconds. You can specify the number of seconds after which a license is regarded as stale as the value of the UseBy action parameter.
For example:
http://LicenseServerHost:port/action=RevokeStaleLicenses&UseBy=18000
You can also use the ReplaceStaleLicenses and UseLicenseWithinSeconds configuration parameters in the [Server]
section of the configuration file to automatically revoke stale licenses.