Let’s fix each of these.
: Use the SLM Configuration Wizard tool to ensure the correct license server address is saved and that the "commute" option is enabled if you need to use the software offline. Version Compatibility Aspen Hysys License Checkout Failed
Firewalls can block the communication ports (typically port 5053 or other dedicated ports) used by the license manager. Let’s fix each of these
If the vendor daemon is down: Restart the FLEXnet service. Aspen Hysys License Checkout Failed
telnet YourServerName 27000
If your organization uses a network license server, your computer must know the exact location (Port@Server) of that server.