[CR #622349] When you install Replication Agent using an unserved license, licenses, the default license directory, is not created. Because Replication Agent does not have access to the license file, it uses the graced license, which expires after 30 days.
Workaround:
Manually create the licenses directory in $SYBASE/SYSAM-2_0.
Copy the unserved license to the licenses directory.
Restart Replication Agent.