Last updated: October 2025. Applies to Autodesk Moldflow Insight 2021 through 2025.
Autodesk Moldflow typically means the solver (Insight) cannot find a valid license to start the analysis. This often happens because the license server is unreachable, the license file is missing the solver component, or the local license configuration is incorrect. 🛠️ Quick Troubleshooting Checklist autodesk moldflow error 99998
Ensure the specific ports for your Moldflow version are open for inbound and outbound traffic. For example: 2023: TCP 44100, 44200. 2021: TCP 43100, 43200. 2019 and older: TCP/UDP 43911, 42911, 43921. Last updated: October 2025
To resolve this error, follow these technical solutions based on your environment: This often happens because the license server is
For Moldflow Insight or Adviser 2023 and newer, follow these steps provided by the Autodesk Support Technical Article Close all Moldflow instances: Ensure no Synergy or Insight processes are active. Open License Configuration: Go to the Windows Start Menu, expand the Autodesk Moldflow Insight 202X folder, and select License Configuration 202X Verify Settings: Ensure the License Mode (e.g., Network) is correct. Confirm the License Level
Victory lap in her head.
But her relief was short-lived. A few days later, Emily encountered the same error again, this time on a different project. It seemed that the fix was not a permanent one, and the error had simply been lying in wait, ready to pounce.