Reboot your machine and reinstall ETABS as an . 4. Network License Troubleshooting (If Applicable) If you are using a network license:
The ETABS license error 18 can be a frustrating issue, but it can be resolved by identifying and addressing the underlying causes. By following the solutions and step-by-step troubleshooting guide outlined in this article, users should be able to resolve the error and regain access to ETABS. If the issue persists, it is recommended to contact the software provider's technical support team for further assistance. Additionally, users can take preventive measures to avoid similar licensing issues in the future, such as regularly checking license validity and keeping ETABS up-to-date.
Verify that ports and 443 are open on your firewall to allow communication with the license manager. etabs license error 18 2021
Several factors can contribute to the occurrence of the ETABS license error 18. Some of the common causes include:
Reinstall ETABS and ensure you check the box for "Use Standard License" instead of "Use Network License". 2. Check the System Date Reboot your machine and reinstall ETABS as an
User Account Control (UAC) in Windows can sometimes prevent software from accessing license files.
This process may not work when versions are separated by more than one major release. It is not possible to run V15 using a V16 license because the licensing system fundamentally changed between program versions. Verify that ports and 443 are open on
file contains the correct IP address of the license server and is placed in the ETABS installation folder. Restart and Relaunch
: The licensing tool often requires a specific date format to recognize the license properly.
Error 18 aligns most closely with the category of errors where the license file is present but not recognized—often due to version incompatibility, corruption, or expiry.
appears as a pop-up window stating: "A valid license could not be obtained by the application. Error code: 18" . In the context of 2021, this usually means: