Etabs License Not Recognized Error 120 Work !!hot!! Today

License Error 120 typically indicates that the license file is incomplete or corrupted

. This error usually pops up when the software's Sentinel RMS License Manager cannot fully read the required authorization data. CSI Knowledge Base Common Fixes for Error 120

Depending on whether you use a standalone or network license, try the following steps: Deactivate and Reactivate

: For standalone licenses, the official recommendation is to deactivate the license and then perform a fresh reactivation to rebuild the license file. Verify System Date/Format

: Ensure your computer's date and time are correct. In some cases, setting the regional format to English (United States)

(mm/dd/yyyy) helps the license manager recognize valid keys. Run as Administrator : Right-click the ETABS shortcut and select "Run as Administrator"

to ensure the software has the necessary permissions to access the licensing directory. Check Sentinel Drivers : If you use a USB dongle, ensure the Sentinel System Driver

is properly installed and the computer recognizes the Computer ID (CID). You can verify this by running WechoID.exe from the ETABS installation folder. Re-link the License File : Ensure the license file (typically named

) is present in both the main installation directory and the CSi\Licensing subfolder. CSI Knowledge Base Advanced Troubleshooting

If the basic fixes don't work, consider these deeper system checks: Clean Registry

: Registry corruption during installation can cause license recognition failures. You can try a new installation after a complete reboot to clear temporary conflicts. FixSerCom Utility : If you are on a network, an administrator can run the lsclean -fixsercom

command from the Sentinel RMS Utilities folder to reset the license communication. CSI Knowledge Base Further Exploration View the official CSI Knowledge Base for a full table of error codes and specific resolutions. Follow this installation and licensing guide for manual file placement instructions. Check this troubleshooting guide for issues specifically related to Standalone CID keys. Are you using a standalone license with a USB key, or is your license hosted on a company server Licensing errors generated when running CSI software 7 Jul 2025 —

Table_title: Licensing errors generated when running CSI software Table_content: header: | Error Code | Problem Description | row: CSI Knowledge Base Licensing errors generated when running CSI software

ETABS License Not Recognized Error 120: A Comprehensive Guide to Troubleshooting and Resolution

ETABS, a popular structural analysis and design software, is widely used by architects, engineers, and construction professionals. However, users often encounter issues with the software's licensing, which can hinder productivity and project progress. One of the most common errors is the "ETABS License Not Recognized Error 120." In this article, we will explore the causes of this error, troubleshooting steps, and provide a comprehensive guide to resolving the issue.

What is ETABS License Not Recognized Error 120?

The ETABS License Not Recognized Error 120 is an error message that appears when the software is unable to detect a valid license. This error typically occurs when the license file is not properly installed, corrupted, or not configured correctly. The error message may vary slightly depending on the version of ETABS being used, but the essence remains the same.

Causes of ETABS License Not Recognized Error 120

Several factors can contribute to the occurrence of Error 120:

Incorrect License File: The license file may be corrupted, incomplete, or not compatible with the version of ETABS installed.
License Not Activated: The license may not have been activated properly, or the activation process was interrupted.
ETABS Version Mismatch: The version of ETABS installed may not be compatible with the license file.
System Configuration Issues: System configuration, such as incorrect date and time settings, can prevent the license from being recognized.
Network Issues: Network connectivity problems can prevent ETABS from communicating with the license server.

Troubleshooting Steps for ETABS License Not Recognized Error 120

To resolve the ETABS License Not Recognized Error 120, follow these step-by-step troubleshooting guides:

Verify License File:
- Check if the license file is present in the correct directory (usually C:\CSI\ETABS\License).
- Ensure the license file is not corrupted by checking its size and contents.
- Try re-downloading the license file from the official CSI website.
Activate License:
- Launch ETABS and select "Activate License" from the Help menu.
- Follow the on-screen instructions to complete the activation process.
- If prompted, contact CSI support for assistance with activation.
Check ETABS Version Compatibility:
- Verify that the version of ETABS installed is compatible with the license file.
- If necessary, update ETABS to the latest version or request an updated license file from CSI.
System Configuration Checks:
- Ensure the system date and time settings are correct.
- Verify that the system clock is not set to a future date, which can cause licensing issues.
Network Configuration:
- Check network connectivity and ensure that ETABS can communicate with the license server.
- If using a network license, verify that the license server is running and accessible.

Advanced Troubleshooting Steps

If the above steps do not resolve the issue, try: etabs license not recognized error 120 work

Reinstall ETABS:
- Uninstall ETABS and reinstall it from the official CSI website.
- Ensure that the license file is re-downloaded and re-applied after reinstallation.
License Server Configuration:
- If using a network license, verify that the license server is properly configured.
- Check the license server logs for any errors or issues.
Contact CSI Support:
- Reach out to CSI support for personalized assistance with resolving the error.
- Provide detailed information about the error, including any error messages and system configuration.

Prevention is Better than Cure

To avoid encountering the ETABS License Not Recognized Error 120 in the future:

Regularly Update ETABS:
- Keep ETABS up-to-date with the latest version and patches.
Verify License File:
- Periodically check the license file for corruption or issues.
Maintain System Configuration:
- Ensure system date and time settings are correct and consistent.

Conclusion

The ETABS License Not Recognized Error 120 can be a frustrating issue, but with the right guidance, it can be resolved efficiently. By understanding the causes of the error and following the troubleshooting steps outlined in this article, users can resolve the issue and get back to working on their projects. Additionally, taking preventative measures can help avoid similar issues in the future. If you are experiencing this error, try the steps outlined above, and if necessary, don't hesitate to contact CSI support for personalized assistance.

To resolve the ETABS License Not Recognized Error #120 , you should primarily focus on re-authenticating your standalone license , as this error typically indicates an incomplete license file CSI Knowledge Base Primary Fixes for Error #120 Deactivate and Reactivate : For standalone licenses, use the CSiLicensing

tool to deactivate your current license and then reactivate it using your activation key. Check Date and Region Formats

: Ensure your Windows system date and number formats are set to US (mm/dd/yyyy) . Incorrect regional settings often prevent the StandaloneKey.exe from recognizing valid licenses. Verify the : Check for the existence of the file in the main ETABS installation directory (e.g., C:\Program Files\Computers and Structures\ETABS [Version]

). If it is missing or corrupted, the program will fail to recognize the license. CSI Knowledge Base Advanced Troubleshooting

If the basic reactivation doesn't work, try these steps identified by Computers and Structures, Inc. (CSI) Administrative Privileges : Ensure you run the activation tool and ETABS as an Administrator

to give the software proper read/write access to license files. Network Ports : Verify that Ports 80 and 443

are open on your firewall, as these are required for the software to communicate with the CSI activation servers. Locking Code Validation echoid.exe wechoid.exe

utility in the installation folder to confirm your machine's locking code matches the one assigned to your license.

For further assistance, CSI recommends sending a screenshot of your locking codes and the file found in the CSiLicensing subfolder to their technical support team open the required firewall ports Licensing errors generated when running CSI software

How to Fix the ETABS "License Not Recognized" Error #120 The ETABS "License Not Recognized" Error #120 typically occurs when the software is unable to verify your license file, often because it is incomplete, corrupted, or mismatched with your system settings. This error can block you from opening your structural models, but it is usually resolvable through specific reactivation or configuration steps. Primary Cause: Incomplete or Corrupted License

According to CSI Knowledge Base, Error 120 specifically indicates that the license file is incomplete. This might happen if: An activation process was interrupted.

The system registry entries became corrupted during installation.

The machine's hardware locking criteria (like Ethernet address or CPU info) changed after the license was issued. Step-by-Step Solutions to Resolve Error 120 1. Deactivate and Reactivate Your License

For standalone licenses, the most direct fix is to refresh the activation status.

Locate the CSiLicensing folder (typically in C:\Program Files\Computers and Structures\ETABS [Version]\CSiLicensing).

Run the deactivation tool to remove the current incomplete license.

Re-run the activation process to generate a fresh, complete lservrc file. 2. Check System Date and Regional Formats License Error 120 typically indicates that the license

Discrepancies in how your computer reads dates can sometimes trigger licensing errors in CSI software. Ensure your system date and time are correct.

Change your PC date/number format to US (mm/dd/yyyy). Some users have found that non-US date formats cause the StandaloneKey.exe to fail to recognize valid licenses. 3. Verify Your Computer ID (CID)

If you use a hardware key (dongle), the error may occur if the driver isn't communicating with the software.

Run WechoID.exe from the installation folder to ensure the Computer ID checkbox is enabled.

If the ID isn't recognized, download and install the latest Sentinel System Driver. 4. Clean Install and Registry Fix

If the error persists, it may be due to leftover registry keys from older or evaluation versions.

Uninstall all previous versions of ETABS and related CSI software. Reboot your machine.

Run the installation as an Administrator to ensure the installer has permission to write to the registry. When to Contact Support

If these steps do not clear the "License Not Recognized" message, you may need to provide CSI Technical Support with diagnostic files for manual verification:

Screenshots of your locking codes from the CSiLicensing folder.

The lservrc file (if it exists) located in the main ETABS directory.

The Error.LOG or LicenseError.LOG file found in the CSiLicensing folder.

Are you using a standalone license or a network license managed by a server? Licensing errors generated when running CSI software

ETABS License Not Recognized Error 120: A Comprehensive Review and Solution

ETABS, a popular software used for structural analysis and design, can sometimes encounter licensing issues that hinder its performance. One such error is the "License Not Recognized" error with code 120. In this review, we'll explore the causes, symptoms, and most importantly, provide a step-by-step guide on how to resolve this error.

What is ETABS and its Licensing System?

ETABS is a finite element-based software developed by Computers and Structures, Inc. (CSI) for the analysis and design of buildings and other structures. The software requires a valid license to operate, which can be either a standalone license or a network license.

The licensing system of ETABS uses a combination of hardware and software keys to validate the license. The license file contains information about the software version, license type, and the authorized computer(s) to run the software.

Error 120: License Not Recognized - Causes and Symptoms

The "License Not Recognized" error with code 120 typically occurs when ETABS is unable to validate the license. The error message may appear as:

"Error 120: License Not Recognized. The license file is not valid or has been corrupted." Incorrect License File : The license file may

The symptoms of this error include:

ETABS fails to launch or crashes immediately after startup
The software displays an error message indicating that the license is not recognized
The license file is not found or is reported as invalid

Common Causes of Error 120

Several factors can contribute to the occurrence of Error 120:

Corrupted or missing license file: The license file may become corrupted or go missing due to system crashes, software conflicts, or accidental deletion.
Invalid or incorrect license information: The license file may contain incorrect or outdated information, causing the software to fail to recognize the license.
Hardware changes or upgrades: Changes to the computer's hardware configuration, such as upgrading the motherboard or replacing the hard drive, can cause the license to become invalid.
Software conflicts or interference: Other software applications may interfere with ETABS or the licensing system, leading to Error 120.

Step-by-Step Solution to Resolve Error 120

To resolve the "License Not Recognized" error with code 120, follow these steps:

Step 1: Verify License File and ETABS Installation

Check if the license file is present in the ETABS installation directory (usually C:\Program Files\ETABS\License).
Ensure that the ETABS software is installed correctly and that the installation is not corrupted.

Step 2: Reinstall ETABS and License File

Uninstall ETABS using the Control Panel or the software's built-in uninstaller.
Delete the ETABS installation directory and any associated files.
Reinstall ETABS from the original installation media or download.
Request a new license file from CSI or re-generate the license file using the CSI licensing portal.

Step 3: Update License File and ETABS Configuration

Update the license file with the new or re-generated license information.
Configure ETABS to use the updated license file:
- Launch ETABS and go to Help > License > License Setup.
- Browse to the location of the updated license file and select it.

Step 4: Troubleshoot Hardware and Software Conflicts

Check for any recent hardware changes or upgrades and re-activate the license if necessary.
Disable any antivirus software or firewall that may be interfering with ETABS or the licensing system.

Step 5: Contact CSI Support

If none of the above steps resolve the error, contact CSI support for further assistance:

Visit the CSI website and submit a support request.
Provide detailed information about the error, including any error messages and system configuration.

Conclusion

The "License Not Recognized" error with code 120 in ETABS can be a frustrating issue, but it can be resolved by following the steps outlined in this review. By verifying the license file and ETABS installation, reinstalling ETABS and the license file, updating the license file and ETABS configuration, troubleshooting hardware and software conflicts, and contacting CSI support if necessary, users can overcome this error and continue to use ETABS for structural analysis and design.

Clean reinstallation steps:

Uninstall Sentinel RMS License Manager from Control Panel → Programs.
Delete leftover folders:
- C:\Program Files (x86)\Common Files\SafeNet Sentinel\
- C:\ProgramData\SafeNet Sentinel\ (hidden folder)
Restart your PC.
Download the latest Sentinel RMS License Manager from the CSI Knowledge Base (or your license provider).
Reinstall using Run as Administrator.
Reapply your lslicense.lic file.
Restart the service (Fix 1).

What Exactly is Error 120?

When you launch ETABS, the software sends a "handshake" request to the license manager on port 1947 (default for Sentinel RMS). Error 120 appears when:

The Sentinel RMS License Manager service is not running.
A firewall or antivirus is blocking communication on ports 1947 or 5093.
The lslicense.lic file is missing, corrupted, or points to the wrong server.
Another program (like older CAD software) has hijacked the required ports.

The full error typically reads:
"License not recognized. Error 120. Cannot connect to the license server. Check that the license server is running and that the network is available."

Primary Causes of Error 120

The error is rarely caused by a single factor. It is usually the result of one of the following three scenarios:

The Resolution Protocol

Follow these steps in order to diagnose and resolve the issue.

Resolving the Void: A Technical Deep Dive into ETABS License Error 120

In the high-stakes environment of structural engineering, few things are more frustrating than a "License Not Recognized" error moments before a critical deadline. Among the various hindrance codes encountered by users of CSI software (ETABS, SAP2000, SAFE), Error 120 stands out as one of the most common yet misunderstood roadblocks.

This error typically manifests with a message similar to: "License not recognized (Error 120)," effectively severing the connection between the software application and the license manager. While the error implies a missing license, the root cause is often far more nuanced, involving network protocols, firewall permissions, or file corruption.

This article provides a comprehensive technical analysis of why Error 120 occurs and offers a systematic approach to resolving it.

The Anatomy of the Error

To understand the fix, one must first understand the mechanism. ETABS utilizes a network-based licensing system (FLEXnet/FLEXlm) to manage software activation. When you launch ETABS, it performs a "handshake" with the license manager service. This handshake involves the application sending a request to a specific port on the license server, and the server responding with an acknowledgment that a license seat is available.

Error 120 essentially means the handshake failed. The application reached out, but the license manager did not respond in the expected format, did not respond at all, or the response was blocked by system security.