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Answers to Top FAQs
1. Introduction to Intel® FPGA Software Installation and Licensing
2. Determining System Requirements
3. Downloading Intel® FPGA Software
4. Installing Intel FPGA Software
5. Licensing Intel® FPGA Software
6. Next Steps After Installing and Licensing the Software
A. Intel FPGA Software Installation and Licensing Archives
B. Document Revision History for Intel® FPGA Software Installation and Licensing
4.1. Installing Intel® FPGA Software Through Quartus® Prime Installer
4.2. Installing the Intel® FPGA Software Manually
4.3. Using the Same Installation Files on Multiple Systems
4.4. Managing Multiple Versions and Copies of Intel FPGA Software
4.5. Setting Quartus® Prime Environment Variables
4.6. Starting the Quartus® Prime Software
4.7. Updating Intel FPGA Software
4.8. Installing and Uninstalling a Software Patch
4.9. Uninstalling Intel FPGA Software
4.10. Troubleshooting Installation Issues
5.1. Summary of Intel FPGA Software Licenses Required
5.2. Evaluating the Quartus® Prime Software
5.3. Acquiring Free, No-Cost Licenses
5.4. Licensing Intel® FPGA Software Walkthrough
5.5. Getting Hardware Information for License
5.6. Using the Intel FPGA Self-Service Licensing Center
5.7. About Intel® FPGA Software License Files
5.8. Checking the IP License Status
5.9. Configuring the License Manager Server
5.10. Troubleshooting License File Issues
5.6.1. Using the License Assistant
5.6.2. Getting a License File with Your New Purchase
5.6.3. Viewing Licenses
5.6.4. Filtering Your Licenses
5.6.5. Viewing and Generating a Legacy License
5.6.6. Viewing Licenses or License Files Associated to a Computer
5.6.7. Regenerating a License File
5.6.8. Generating a Temporary Checkout License
5.6.9. Generating a Companion License
5.6.10. Renewing Your License
5.6.11. Managing a Computer Profile
5.6.12. Rehosting a License on a Different Computer
5.6.13. Rehosting All Licenses from Current Computer to a Different Computer
5.6.14. Rehosting Multiple/Partial Licenses from Current Computer to a Different Computer
5.6.15. Sharing a License with Another User
5.6.16. Adding Delegate Administrators to Your Licenses and Computers
5.6.17. Splitting Seats on Your License and Generating Licenses
5.6.18. Merging or Adding Seats on Your License and Generating License
5.6.19. Adding Floating Seats
5.6.20. Signing Up for an Evaluation or No-Cost License
5.6.21. Signing Up For an Employee License
5.9.1. Installing the FLEXlm License Manager Server Software on Another License Server
5.9.2. Upgrading the FLEXlm License Manager Server Software
5.9.3. (Windows Only) Starting and Stopping the License Server
5.9.4. (Windows Only) Starting the License Server Automatically
5.9.5. Rereading an Existing License File on a License Server
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5.10. Troubleshooting License File Issues
Generally, to troubleshoot licensing issue, perform these steps:
- Check that the license file has not expired.
- Regenerate the license from the SSLC.
- Verify that the LM_LICENSE_FILE environment variable points to the location of the license.dat file. The setup of the environment variable depends on the OS on your PC. For more information, refer to
Visit the following links for additional help with troubleshooting Intel® FPGA software license files:
- Quartus® Prime Software Licensing Questions and Answers
- Intel® FPGA Software License Troubleshooter
- Intel® FPGA Licensing Support Center
The following articles carry solutions to some of the frequently asked questions:
- Does the Questa*-Intel® FPGA Starter Edition software require a license file?
- Why can't I check out a floating license for Questa*-Intel® FPGA Edition version 10.3c?
- Why doesn't my Quartus® Prime software license work on RedHat 7.x?
- Why does the Quartus® Prime software fail to detect a floating license?
- How do I determine whether the Intellectual Property (IP) that I used in my design is licensed?
- How can I stop older versions of the Quartus® Prime software or IP from using newer floating network licenses?
- When is a license checked out by the Quartus® Prime software, IP cores, and Questa*-Intel® FPGA Edition software?
- Is there a specific environment variable that I can use for Quartus® Prime software licensing, such as ALTERAD_LICENSE_FILE?
- How do I get my license if it does not show in the self-service licensing center because the maintenance expired before January 1, 2009?
- How do I determine whether the Intellectual Property (IP) that I used in my design is licensed?
- Why does the Quartus® Prime software fails to detect a floating license?
Tip: If you are facing any issue not listed in this topic, explore Intel® FPGA Knowledge Base articles or post your query on Intel® FPGA Software Installation & Licensing forum.