Is there a specific listed under the checkout failed message? Share public link
If nothing else works, purge and repave the license tools.
Details:
A: Follow the troubleshooting steps outlined in this article, including checking the license server status, verifying license settings, and restarting the license server. Aspen Hysys License Checkout Failed
: Reinstall the license file or repair the license configuration:
Ensure your SLM version is compatible with your HYSYS version; older license managers may not support newer software.
Did you upgrade from HYSYS V11 to V12.1? The old license file may not support the new features. Is there a specific listed under the checkout failed message
Open the SLM License Manager to see if the server status is "Connected". Variable Check Verify that the system environment variable matches your server. Version Match
SERVER myserver 123456789ABC 27001 VENDOR aspen port=27001
If the error specifically mentions that no tokens are available, the server is reaching its capacity. : Reinstall the license file or repair the
If you are using a standalone (node-locked) license or if your company’s annual maintenance has lapsed, the license file itself may have expired.
Before changing configuration files, ensure your computer can actually talk to the license server.