If you have chosen to use the served license model, make sure you have installed the required SySAM license server version.
SAP Replication Server 15.7.1 SP200 and SySAM 2.3 use FlexNet Publisher version 11.11 on all platforms except on Windows, Red Hat Enterprise Linux, and SuSE Linux Enterprise Server, all of which use version 11.11.1.
To check the version of FlexNet Publisher used by your license server, examine the license server log or execute the lmgrd -v command.