CC-SG 6.0 no longer supports the Flexera lmadmin or lmgrd license servers. An external license server is not required anymore. If you are using a license server, you must get new license files from Raritan to migrate away from the license server. You must re-license before upgrading to CC-SG 6.0. Contact Raritan Technical Support to get the licenses, then use the CC-SG License Manager to upload them.