Verify that the expiration date for the specific Hysys tokens is in the future.
Troubleshooting "Aspen Hysys License Checkout Failed": Causes and Fixes
Firewalls can block the communication ports (typically port 5053 or other dedicated ports) used by the license manager.
Open the Windows Start Menu and search for or SLM Configuration Wizard . Open the application and navigate to the Server tab. Aspen Hysys License Checkout Failed
: The software is looking at the wrong server or using outdated host information. Step-by-Step Solutions 1. Verify Server Connectivity
Aspen HYSYS could not obtain a required license. The application will now exit.
Sometimes Hysys opens fine, but throwing the error happens only when opening a specific file. This occurs because the simulation file uses specialized extensions—such as Hysys Dynamics , Sulsim , or Upstream options—that your company’s license package does not include. Try opening a completely blank Hysys case. Verify that the expiration date for the specific
Troubleshooting the "Aspen Hysys License Checkout Failed" Error
and set its value to your computer name or the server's IP address [2]. Restart License Services Navigate to the Aspen installation directory and locate the Sentinel RMS License Manager Within the folder, find WlmAdmin.exe Rename the file to WlmAdmin.exe.old , then right-click and Run as administrator Check Token Availability
If you are using a network license, verify that the server is active. Open the application and navigate to the Server tab
Click and enter the Server Name or IP (e.g., ://yourdomain.com ). Click Add Server and then Apply Changes . 3. Address Firewall Blocks
Type your server’s name or IP in the field. Click Add Server and then Apply Changes . 4. Handle "All Licenses in Use"