Aspen Hysys License Checkout Failed

Click the button to launch the SLM Configuration Wizard .

The "License Checkout Failed" error is a generic symptom with specific underlying causes. These can be categorized into three distinct domains:

A frequent cause is that the system cannot identify the license server's location. You can manually point HYSYS to the right place:

Encountering a "License Checkout Failed" error in Aspen HYSYS is a common frustration for process engineers. This error typically indicates that the software cannot locate a valid license file, cannot connect to the license server, or that all available seats for a specific feature are currently in use. Aspen Hysys License Checkout Failed

Check that firewall ports (typically TCP 5093 for Sentinel RMS) are open.

The computer cannot reach the license server (common with VPNs or firewalls).

All available seats for that specific Aspen HYSYS version or feature module are currently in use by other network engineers. Click the button to launch the SLM Configuration Wizard

If these steps do not resolve the issue, you can search for technical tips and submit support tickets through the AspenTech Support Center University of Alberta

On the client machine, verify basic connectivity:

: Windows does not know where to look for the license server. You can manually point HYSYS to the right

This article outlines the common causes of the Aspen HYSYS license checkout failure and provides actionable solutions to restore functionality. Common Causes of License Checkout Failures

On the server machine, press Windows Key + R , type services.msc , and press Enter.

Wait for the command prompt to finish and close automatically. Relaunch HYSYS, and it will attempt to restore the database.