This error typically appears during software startup, when opening a model, or when attempting to run an analysis. The message indicates that the licensing system (Sentinel RMS, formerly Safenet) cannot verify that a valid license exists for the software on your machine or network. Unlike simple "license expired" messages, Error 30 points to a breakdown in communication between the software and the license server or local license file.
Run WechoID.exe in the ETABS folder to confirm your computer recognizes the Computer ID. 5. Network License Troubleshooting