Operating system

Tekla on-demand license server 2025 is designed to work with:

• Windows 11
• Windows 10, supported until October 14th 2025, aligned with the Microsoft Windows 10 Home and Pro Lifecycle Policy.
• Windows Server 2019
• Windows Server 2016, supported until January 12, 2027, aligned with the Microsoft Windows Server 2016 Lifecycle Policy.

Only 64-bit operating systems are supported. It is best practice to install the Tekla on-demand license server on an operating system intended for servers.

Linux or Unix based servers are not supported. Directly deploying the Tekla on-demand license server in cloud environments is not supported.

You can install the Tekla on-demand license server on a regular workstation, but the most reliable solution for serving multiple clients is to use a separate server computer with a server operating system. Servers are designed to operate reliably for a longer time without the need to restart as often as regular workstations.

Additional software components

Tekla on-demand license server 2025 uses Microsoft .NET Framework 4.8 Full and Microsoft Visual C++ 2015-2019 Redistributable (X64).

Internet connection

The Tekla on-demand license server uses the internet on a regular basis and requires an intermittent internet connection. The Tekla on-demand license server reports Tekla Structures usage to the Cloud Licensing Service (CLS) for billing, and the Tekla on-demand license server gets its own license from the CLS.

The Tekla on-demand license server borrows its own license for 72 hours, and renews the license every 2 to 3 hours. If a connection break is longer than 72 hours, the Tekla on-demand license server rejects any license requests by Tekla Structures.

Other infrastructure

• The Tekla on-demand license server and workstations running Tekla Structures must be in the same local area network.
• The workstations must be able to contact the license server.
• Your company's firewall must allow communication between the server computer and the workstations running Tekla Structures.

  Configure the firewall to allow the Framework.dll, tekla.exe, and lmgrd.exe for the Tekla on-demand license server to operate through the firewall. These files are located in the ..\Tekla\License\OnDemandServer folder.

• If your internet connection is restricted, change your firewall settings to allow outbound traffic on TCP port 443 to https://identity.trimble.com and https://activate.tekla.com.
• The MAC address of your network adapter where the license server is installed should not be changed. If you are using a virtual environment, ensure that you are using static MAC addressing instead of dynamic MAC addressing.
• Use a static IP address for your license server. Do not use a dynamic IP address, such as an IP address assigned using dynamic host configuration protocol (DHCP).

Tekla Structures versions compatible with on-demand licensing