Tekla Structures Multi User Server 23 20 <2026 Update>

| Symptom | Common Cause | Recommended Solution | | :--- | :--- | :--- | | | Firewall blocking the connection. | Ask IT to verify that TCP port 1238 is open on the server's firewall. Also, add xs_server.exe to the Windows Firewall exception list. | | Connection breaks intermittently | Unstable network or server name resolution. | Try using the server's static IPv4 address (e.g., 10.0.0.11 ) instead of its computer name to bypass DNS issues. | | "Model is locked" error persists | The server service may have a temporary lock on the file. | Restart the Tekla Structures Multi User Server service from the Windows Services panel. If the issue persists, delete the temporary database file tcpip_localhost_<xxxx>.db found in C:\ProgramData\TeklaStructuresServer . | | Unable to save the model | A user's session may be "stuck" on the server. | Close Tekla Structures on all connected devices, then restart the multi-user server machine entirely. This often clears orphaned user process handles. |

Once downloaded, double-click the installation file to launch the InstallShield Wizard. The installation process requires no user input for configuration. The installer will automatically install the multi-user server as a Windows service, which will start automatically whenever the computer is booted up. You do not need to log into or manually start this service after each restart.

Once the server is running, the clients (engineers) must configure Tekla Structures to find the server. Tekla Structures Multi User Server 23 20

The installation process for Tekla Multi-User Server 23 is straightforward but must be executed with administrative privileges.

: It runs as a Windows service that starts automatically with the computer, requiring no manual login to remain active. Key Technical Specs (v2.3.0.20) Getting started with multi-user | Trimble User Assistance | Symptom | Common Cause | Recommended Solution

At its core, the system relies on a master model stored on a network file server. When a detailer opens the model, they create a local working model on their own computer. The Multi User Server intelligently manages all interactions between these individual workstations and the central master model. This includes managing concurrent operations, preventing conflicts by temporarily locking portions of the model when a user makes changes, and ensuring that every save operation is synchronized without creating duplicate data or losing information.

If you leave this file empty, anyone on your network can join the model (common for internal office setups). | | Connection breaks intermittently | Unstable network

Ensure the Tekla Structures Multi-User Server service is actively running in the Windows Services manager ( services.msc ) on the host server.

The server machine requires a fixed network IP address so client workstations do not lose connection due to dynamic DHCP lease renewals.