Troubleshooting and FAQ
Articles in this section are a collection of common installation questions. Refer to this section if you have any trouble downloading or activating your software. For in-depth help, please contact us within the Ansys Customer Support Space (ACSS). Please note, users at academic accounts should use AIS instead of ACSS.
- Creating a case in the Ansys Customer Support Space (ACSS)
- How to reset Lumerical login information
- Gathering logs and information for reporting Ansys Zemax OpticStudio issues
- Troubleshooting your OpticStudio installation
- GPU Simulation and Monitor Data in 2025 R2
- Ansys Zemax licensing overview and guides
- Launching Ansys Lumerical Products with and Without Mesa Library
- Disabling pop-up messages
- Ansys Optics - Welcome Guide
- Troubleshooting and FAQ
- Where can I find Ansys technical support?
- System Requirements and Supported Platform
- Support for MacOS ends with 2020 R2
- Support for Lumerical FlexNet license manager (legacy) ends with 2023 R1
- How to create or update your Ansys Lumerical user account (deprecated)
- How to reset your Ansys Lumerical password
- Finding your customer number, product version, entitlement, and system information
- How to register and access technical support on Ansys Customer Support Space
- Downloading the Installation package
- Clearing and setting Lumerical cache
- Create or modify environment variables in Windows
- Setting environment variable in Linux
- How to obtain your license server's HostID information
- Fixing common licensing errors
- Custom installation using msiexec.exe on Windows
- Fixing installation or licensing issues
- What happens when you lose connection to the license server?
- How to check license status and availability
- How to release stuck, ghost, or abandoned license
- Adding inbound rules to Windows defender firewall