It was a classic structural engineer's nightmare. According to the CSI Knowledge Base , typically signifies an incomplete license file . For Maya, this meant her software couldn't verify her credentials, likely because her standalone license had hit a snag during a recent system update.
Right-click the official ETABS installer executable and select Run as Administrator . etabs license not recognized error 120
Use server logging to track usage patterns. Summary Table Possible Cause Immediate Action No Network Check VPN or LAN connections. Service Stopped Restart "Sentinel RMS License Manager" on the server. Firewall Block Allow ports 1138, 1139 in Windows Firewall. Wrong Server Name Edit csi_lm.ini on client computer. All Licenses Used Check usage via WlmAdmin. It was a classic structural engineer's nightmare
This is the most overlooked cause of Error 120. CSI licenses are often . Service Stopped Restart "Sentinel RMS License Manager" on
Ensure your CSI software maintenance contract is updated so you can quickly generate new activation keys if your hardware locking code (Computer ID) changes due to a motherboard or network card upgrade. To help troubleshoot this effectively, please let me know: