Thanks for your help.
The license is locked to machine criteria that have changed. Step-by-Step Troubleshooting Guide Follow these steps in order to resolve the licensing issue. 1. Check Sentinel RMS License Manager Service
If you are using a network license or a local standalone server framework, the background service might have stalled. Press Windows Key + R to open the Run dialog box. Type and press Enter . Scroll down and locate Sentinel RMS License Manager . unable to find a license etabs 18
ETABS looks for a specific file named lservrc to verify your activation. Open Windows File Explorer.
Sometimes the issue is as simple as an expired ( lservrc file) or a firewall blocking the UDP port 5093 . Check with your IT admin to ensure the license hasn't reached its seat limit! Thanks for your help
If the LMHOST.INI file does not resolve the issue, a legacy LSHOST file can force the connection. Open Notepad and type the server name or IP address.
It sounds cliché, but in the world of network licensing, it is step one. Type and press Enter
If these files are missing or incorrect, reinstating them from a backup or contacting your software provider for new ones is necessary. For licensed users, you can deactivate and reactivate the license using (available from the Windows Start menu) or the software's Help > License Information > Change Activation Key menu.
Follow these essential steps to isolate the issue step-by-step: