Tekla Structures Multiuser Server 2.3.20 (often referred to as version 23 20 in some contexts) is a software application that enables multiple users to work on the same 3D model simultaneously in real-time. It acts as a central hub that manages project data and prevents data conflicts during collaborative modeling. Google Groups Core Functionalities

| 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. |

The Tekla Multi-User Server is a lightweight server application designed to manage access to a single Tekla model shared by multiple users. Unlike the more advanced , which utilizes cloud-based caching for distributed teams, the Multi-User Server is designed for Local Area Network (LAN) environments.

Running a stable Multi User Server for versions 23/20 requires discipline.

To ensure a seamless and efficient multi-user experience, the team should adhere to a few golden rules.

Today, we are taking a technical deep dive into versions . While these are not the latest releases (the current numbering has since evolved), many legacy projects and specific client workflows still rely on these stable versions.

: Divide the model into logical phases, sequences, or areas. Assign specific detailers to specific zones to prevent object ownership conflicts.

Upon saving, the client machine automatically contacts the Multi-User Server to request a master database lock. The server verifies compliance, logs the active active user state, and processes the changes sequentially, keeping structural tracking continuous and secure. Essential Hardware and Networking Requirements

Before installing Tekla Structures Multi-User Server 23.20, ensure that your hardware meets the following system requirements:

While the server version 2.3.20 is backward compatible with many versions of Tekla Structures (e.g., 2017 through 2021), it is vital that working on a specific model use the same version and Service Pack of Tekla Structures to avoid database conflicts. Common Troubleshooting Tips