Isolate the geometry.

Use tools like LMTOOLS to monitor license usage and avoid "All licenses in use" scenarios during peak simulation times. verifying license increments

If you have enough licenses but still get the error, a previous crashed analysis might be "holding" the license. Task Manager : Open Task Manager and end any processes named 0% CPU usage Restart SCM tab of Task Manager, right-click (Simulation Compute Manager) and select 4. Check Firewall and Network Ports