Aspen Hysys License Checkout Failed Jun 2026

Have you fixed this error before? What was the root cause in your case? Share your experience below.

Ensure the licensing services are active on the server side.

(found in the AspenTech start menu folder) to re-input the server details and ensure the registry is correctly updated. Run as Administrator

telnet YourServerName 27000

Windows Home Edition may lack necessary licensing infrastructure components. Aspen requires 64-bit Windows with full Windows services enabled. Enable Internet Information Services through Control Panel -> Programs and Features -> Turn Windows features on or off, then check Internet Information Services. If issues persist, upgrading to Windows Professional or Enterprise may be necessary. For Mac and Linux users, Aspen is only available for 64-bit Windows, requiring a Windows installation first.

: If you are using a shared token system, the error may occur because all licenses are currently in use . Ensure you have closed all other open Aspen instances (Plus, EDR, etc.).

“User 'jsmith' is not included in the license file.” Aspen Hysys License Checkout Failed

Here is a step-by-step guide to resolving the issue.

Expand the defined server tree to view active feature tokens.

To help narrow down your specific issue, please let me know: Are you connecting via a or a company VPN ? What version of Aspen HYSYS are you currently running? Have you fixed this error before

Open the (found in the AspenTech folder in your Start menu).

Sometimes HYSYS fails to find the server even on the right network. Adding a manual pointer in Windows can help: Right-click or My Computer > Properties . Select Advanced System Settings > Environment Variables . Under System Variables , click New . Variable Name: LSFORCEHOST or LSHOST .

If the button is grayed out, you have a stale borrowed license. You must manually delete the borrowed license files, typically found in C:\Users\[YourUserName]\AppData\Local\AspenTech\ (Look for .borrow files). Ensure the licensing services are active on the server side