The built-in reporting tool in 2023R1 has improved graphs and export capabilities.
To generate a usage report:
For command-line automation:
lmstat -a -c 1055@license_server -S ansyslmd > daily_report.txt
Cause: Firewall blocking port 1056 (ansyslmd vendor daemon).
Solution: Add inbound rules for ports 1055, 1056, and 25721. On Linux, check iptables or firewalld.
Symptoms: License remains checked out after borrowing period.
Root cause: Corrupt ansysli_borrow.dat on client.
Solution: Delete %APPDATA%\Ansys\v231\license\ansysli_borrow.dat (Windows) or ~/ansys/v231/license/ansysli_borrow.dat (Linux). Then run ansysli_client -borrow -return -feature <feature_name>.
After the server is set up, the end-user workstations (Clients) need to know where to look for the license.
Method A: Environment Variable (Recommended) Set the following system environment variable on the client machine: ansys license manager 2023r1
Method B: Licensing Settings If the variable is not set, users can open ANSYS License Management Settings (installed with the client products) and type the server name in the "Server" field.
ANSYS License Manager 2023 R1 represents a mature, robust licensing solution suitable for small labs up to global enterprises. Its enhancements in security (TLS 1.2, AES encryption), cloud readiness (DNS SRV, container support), and performance (multithreaded vendor daemon) make it a worthwhile upgrade from earlier versions. However, administrators must pay close attention to syntax changes, deprecated environment variables, and the new per-user borrowing file location. With proper configuration and monitoring, 2023 R1 delivers reliable license serving for the entire ANSYS 2023 R1 product suite and is backward compatible with many 2022 R2 clients.
For further assistance, refer to the official license_guide.pdf included in the installation or run lmutil -help for a complete command list.
Document version 1.0 – Last updated April 2026 (reflecting stable practices for ANSYS 2023 R1).
Once upon a time in the bustling R&D hub of Aether Dynamics, a lead engineer named Leo faced the ultimate deadline. His team had spent months designing a high-speed turbine, and the final structural simulation needed to run by midnight.
Leo sat before his workstation and launched Ansys 2023 R1. But instead of the familiar blue progress bar, a notification popped up: “Cannot connect to License Server.” The built-in reporting tool in 2023R1 has improved
The heart of the office, the Ansys License Manager, had gone quiet.
Leo rushed to the server room. The License Manager was like a digital librarian; without its "handshake," no one could check out the "books" (the software features) needed to work. He opened the License Management Center web interface. The diagnostic logs revealed the culprit: a recent server security update had accidentally blocked Port 1055, the very gate the software used to talk to its master.
With a few clicks, Leo reconfigured the FlexNet settings, verified the host ID, and restarted the service. He watched the status light turn green. Back at his desk, he clicked "Run."
The License Manager performed its invisible magic, granting Leo’s machine the tokens it needed. The fans on his workstation began to hum, the simulation pixels surged to life, and the turbine held steady under the pressure. The "librarian" was back on duty, and the project was saved.
Getting Started with Ansys License Manager 2023 R1: A Complete Guide
The release of Ansys 2023 R1 brought significant updates to simulation capabilities, and with them comes the need for a robust licensing setup. Whether you are managing complex structural simulations in Ansys Mechanical or advanced fluid dynamics in Ansys Fluent, the Ansys License Manager (ALM) is the heart of your workflow. Cause: Firewall blocking port 1056 (ansyslmd vendor daemon)
This blog post covers everything you need to know about installing, configuring, and troubleshooting the 2023 R1 version of the License Manager. Key Updates in 2023 R1
The 2023 R1 version of the License Manager isn't just a routine update; it marks a transition for several product lines:
Mandatory Transition: For users of Ansys Optics (Lumerical), 2023 R1 is the final release to support the legacy FlexNet License Manager. All future updates will require the standard Ansys License Manager.
Version Compatibility: The license server version must always be greater than or equal to the version of the Ansys application you are running. Upgrading to the 2023 R1 Manager ensures you can run any 2023 R1 product.
Platform Requirements: On Windows, versions 2021 through 2023 specifically require Windows 10 or 11. How to Install Ansys License Manager 2023 R1 Follow these steps to set up your server correctly: Ansys License Manager Installation
