The root of the problem
The ANSYS license error "FlexNet Licensing error: -96" or "ANSYS Licensing Interconnect failed" commonly occurs when the floating license service is stopped on the server or the license configuration file (ansyslmd.ini) loses the default port path (1055 or 2325). This prevents the ANSYS software from communicating with the license server, causing a failure when running finite element analysis (FEA) or CFD simulations.
Step by step: How to fix the error
Check the status of the services
1. Open the
ANSYS License Management Center in your local web browser.
2. Check the status of the license-related services, such as "ANSYS Licensing Interconnect" and "ANSYS License Manager".
3. If the services are stopped, proceed to restart them.
Restart the license services
On Windows:
1. Open Task Manager and select the "Services" tab.
2. Look for the services related to ANSYS (for example, "ANSYS Licensing Interconnect").
3. Right-click each service and select "Restart".
On Linux:
1. Open a terminal.
2. Run the command:
sudo systemctl restart ansyslmd.
3. Verify that the services are active using:
sudo systemctl status ansyslmd.
Set the system environment variable
1. Open the system properties on your computer.
2. Click on "Advanced system settings" and then on "Environment Variables".
3. Look for or create the
ANSYSLMD_LICENSE_FILE variable.
4. Set its value to the path of the master license server, for example:
1055@servidor_licencias.
5. Save the changes and restart the computer.
Frequently Asked Questions (FAQs)
What does the "FlexNet Licensing error: -96" mean?
This error indicates that ANSYS cannot find or connect to the specified license server.
What ports does ANSYS use for licensing?
ANSYS commonly uses ports 1055 and 2325 for license communication.
How do I check if the license server is active?
Use tools such as
ping or
telnet to confirm that the server is reachable from your computer.
What should I do if the services don’t restart?
Check that there are no port conflicts and make sure that the
ansyslmd.ini file is correctly configured. If the problem persists, contact ANSYS support.
