Troubleshooting Autodesk Moldflow Error 99998 is a critical licensing error that completely halts injection molding simulation solvers when they are unable to retrieve a required seat from the license server. This error typically states that a license for core solver components—such as AMI_STANDARD , AMI_PREMIUM , or AMI_ULTIMATE (for Moldflow Insight) or AMA_PREMIUM and AMA_ULTIMATE (for Moldflow Adviser)—is not available, expired, or entirely checked out by other network users.
: Moldflow cannot resolve the license server's alphanumeric network name to its physical IP address.
If the error is caused by an exclusive licensing seat conflict, resetting your local login state will force Autodesk to re-allocate a clean token. Close all Autodesk applications.
Moldflow Insight Ultimate – ERROR 99998 when running batch from Command Shell (runstudy) ... I'm using Moldflow Insight Ultimate ( Autodesk Community, Autodesk Forums, Autodesk Forum
If the server name cannot be resolved to an IP address, the connection will fail. autodesk moldflow error 99998 exclusive
The most common trigger. Moldflow’s database structure ( .mfj , .mfs , .mfr files) can become internally inconsistent after crashes, improper saves, or network interruptions.
If the issue persists in Moldflow 2021 or newer, try uninstalling and then reinstalling the Autodesk Moldflow Insight License Configuration package from the Windows Control Panel. For further assistance, you can consult the official Autodesk Support Technical Article on Error 99998. solver installation instead?
For Moldflow Adviser users, the error references licenses such as AMA_PREMIUM or AMA_ULTIMATE instead of AMI variants.
Check the service status:
: Check the license service log file for checkout errors or "denied" messages, which indicate whether the request is reaching the server but being rejected. Resolutions and Best Practices For Windows Users
sudo systemctl start adsklicensing
End these tasks to release the "exclusive" hold on the license. Verify License Configuration
The solver attempts to pull a specific license tier (such as Moldflow Insight Ultimate) but finds the seat locked, or the Synergy interface fails to hand off the token exclusively to the localized solver thread. Troubleshooting Autodesk Moldflow Error 99998 is a critical
If you can tell me you are using (e.g., 2023, 2024, 2025) and whether you are using a network or standalone license , I can provide more specific troubleshooting steps for your situation.
– Even before the solver runs, Moldflow writes a log file in the study directory. Search for the string "99998" there; it often contains a more specific sub-error (e.g., "failed to write element 45321").
: Firewalls, anti-virus software, or VPN restrictions can block the license request from reaching the server. Recommended Troubleshooting Steps Verify Server Status with LMTools on the license server. Navigate to the Server Status tab and click Perform Status Inquiry Confirm that the solver licenses (e.g., ) are listed and not expired. Update License Configuration (Windows)
Confirm that the Insight solver licenses (MFIB, MFIP, or MFIA) are listed and not expired. Are you running this analysis on a local workstation network/Linux solver If the error is caused by an exclusive
Scroll down through the log and search for the native Moldflow solver feature codes: : Moldflow Insight Base MFIP : Moldflow Insight Premium MFIA : Moldflow Insight Advanced/Ultimate
Click on (Alternatively, navigate to C:\Program Files\Autodesk\Moldflow Synergy 202X\bin\mlc.exe and execute it as an Administrator). Switch the selection toggle to Network License .