On each client workstation that connects to a network license server, ensure that SAP2000 knows where to find the server. There are two recommended methods:
Create an to allow TCP and UDP traffic on port 5093 . Summary Checklist for Error 18 Potential Cause Expired License Generate new lservrc and replace it. MAC Address Change Update HostID with CSI Support. Network Failure Create LMHOST.INI on client machine. Service Stopped Restart "Sentinel RMS" in Windows Services. Sap2000 License Not Recognized Error 18
Understanding the root causes of this error allows you to systematically troubleshoot and restore your engineering workflow. Primary Causes of Error 18 On each client workstation that connects to a
Alternatively, copy the updated lservrc file directly into this root directory if you are using a standalone license. 4. Verify Port 5093 and Network Rules MAC Address Change Update HostID with CSI Support
| Component | Specification | | :--- | :--- | | | [e.g., Windows 10 Pro 64-bit] | | Computer Name | [Your Machine Name] | | IP Address | [Your IP] | | Sentinel RMS Version | [e.g., v8.5.1] |
Try running SAP2000 by right-clicking the shortcut and selecting .