Tekla Structures Multi User Server 23 20 Hot! May 2026

Tekla Structures Multi-User Server (Version 2.3.2.0) is an essential utility for local design teams who need to collaborate on the same 3D structural model in real-time. While newer cloud-based solutions like Tekla Model Sharing are available, the Multi-User Server remains a reliable, cost-effective choice for teams working on a shared local network. Key Features & Functionality

Real-Time Synchronization: Allows multiple users to connect to a central database, enabling them to see updates from colleagues as soon as they save their work to the master model.

Centralized Master Model: The system maintains one "master model" on a server, while each user works in a local "working model." This structure minimizes the risk of data corruption.

Low Performance Requirements: The server software is lightweight and does not require high-end hardware; it can even run on the same machine as the Tekla License Server. Tekla Structures Multi User Server 23 20

Multi-Instance Support: Version 2.3 allows for setting up multiple server instances on a single computer by assigning different TCP ports (default is 1238), which helps in organizing different projects or teams. Pros and Cons Getting started with multi-user | Trimble User Assistance

1. Purpose and high-level description

The Multi-user Server is a Windows service that coordinates multi-user access to a Tekla Structures master model on a network file server.
It enforces locks, manages active user sessions, issues drawing and numbering IDs, and prevents conflicting saves/edits across clients.
The server listens on TCP port 1238 by default and runs as xs_server.exe (installed as the Tekla Structures Multiuser Server service).

7. Converting models to multi-user

From a Tekla client, use File > Sharing > Convert to a multi-user model (or equivalent workflow in Tekla Structures 23). Specify the Multi-user Server host name (computer name) when prompted. The model is converted and placed under multi-user control on the network share.

Opening a Multi-User Model

When a user opens a multi-user model:

Read-Only vs. Read-Write: Tekla will prompt the user to choose their access mode. To modify the model, they must select "Read-Write."
Locking: The server places a lock on the objects being modified. If User A is editing a beam, User B can see the beam but cannot move it until User A releases the lock (usually by saving or deselecting).

Issue 1: "Server version mismatch" error

Cause: A Tekla 23 client is trying to open a model from a Server 20.
Solution: Use the "Convert Multi-User Model" tool in Tekla 23 to upgrade the database. Warning: This is irreversible for version 20 clients.

4. Installation Guide

The installation process for Tekla Multi-User Server 23 is straightforward but must be executed with administrative privileges. Tekla Structures Multi-User Server (Version 2

Download: Locate the installation package TeklaStructuresMultiUserServer230.exe from the Tekla Downloads page or your Trimble account.
Run Installer: Right-click and run as Administrator. Click Next through the welcome screen.
Installation Path: Choose a destination folder. Note: This is where the service runs from, not necessarily where the model data is stored.
Service Configuration: The installer will ask for a Service Name. Leaving it as default (Tekla Structures Multi-User Server 23) is standard.
Model Folder Location: During setup, you will be asked to specify where models are stored. It is best practice to point this to a dedicated data drive (e.g., D:\TeklaModels).
Firewall Exception: Ensure the checkbox for "Add Windows Firewall Exception" is selected.
Complete: Finish the installation. The service will start automatically.

User Authentication

Versions 20 and 23 do not use Windows authentication natively. They rely on the userlist.txt file located in the server installation root. Syntax example:

Administrator admin
JaneDoe 1234
BobWilson bobpass

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

Conclusion

The Tekla Structures Multi User Server 23 20 ecosystem represents a mature, reliable collaboration platform. While the industry pushes toward the cloud, the raw speed, deterministic control, and offline resilience of these legacy multi-user servers keep structural steel detailing floors running. The Multi-user Server is a Windows service that

By following this guide—setting up dual-version ports, managing user lists, fixing error codes 1012 and 1005, and scheduling automatic purges—you ensure that your team of detailers, checkers, and project managers experiences zero downtime.

Remember the golden rule of Tekla Multi User: Communication saves conflicts. Use the server not just as a tool, but as a protocol. When version 23 eventually reaches end-of-life, you have a robust migration plan already tested for version 20 legacy models.

Need specific help with your Tekla Structures Multi User Server configuration? Check the official Trimble Community forums or consult your local reseller for version-specific hotfixes for 23.0 SR8 and 20.0 SR13.