Network licensing errors during software startup

Issue

Solution

Common startup errors for AutoCAD®-based software are listed below. Try applying these solutions first, and then review further instructions if the problem persists.

• FlexLM License Finder dialog box displayed at startup
• Activation dialog box displayed after a network installation
• Network licensing error [1.5.-4] when starting the software
• Network licensing error [1.5.-5] when starting the software
• General solution
• Using AutoCAD Revit Architecture or Structure Suite
• Network licensing error [1.5.-15] when starting the software
• General solution
• Using software remotely via a WAN or VPN
• Network licensing error [1.5.-18] when starting the software
• Network licensing errors [1.5.-96], [1.5.-97], [1200.5.-96], [1200.5.-97] when starting the software

If these solutions do not resolve the installation error, the additional tests listed below will help determine the cause of the problem.

• Network licensing errors often indicate a problem with the license manager. See the following solution for details on configuring and troubleshooting the Autodesk Network License Manager: Problems configuring the Autodesk Network License Manager (FlexLM).
• Many times errors occur when license servers are changed, added or removed. Make sure that your product is looking to the correct license manager. Change how your AutoCAD-based software locates the license manager by setting an environment variable on the client workstations. For more information, refer to the following solution: Specifying license servers using the ADSKFLEX_LICENSE_FILE environment variable.
• Make sure that client machines can ping the license manager and the license manager can ping the clients by hostname. If this does not work, it indicates a networking problem that will need to be addressed before network licensing will work. Contact your network administrator or IT professional for additional assistance.
• If the Autodesk product does not display an error code, or you want a more descriptive response, follow the instructions in the following solution to increase the amount of information returned when a network licensing error occurs: Increasing verbosity of FLEXlm® errors. This information is particularly useful when troubleshooting Revit licensing issues.
• For a complete description of all error codes, refer to the Macrovision FLEXlm® documentation (in HTML format), which is included with the installation of the Autodesk Network License Manager. By default, the FLEXlm documentation is located in the C:\Program Files\Autodesk Network License Manager\Docs\FlexUser directory.

If you have worked through the standard troubleshooting steps and were not able to resolve the issue, follow this link for additional technical assistance.

Please collect the following information from your system before you request technical assistance:

• Screenshots of any error messages encountered
• License file currently in use at each license manager
• Options file in use at each license manager (if applicable)
• Debug log file in use at each license manager
• Copy and paste from LMTOOLS > Server Status tab > Perform Status Enquiry

See also

How to troubleshoot installation and configuration of Autodesk products
Contacting a technical support provider