If the service is corrupted, you can reinstall it without uninstalling your entire CAD program.
Download the latest official installer for your operating system (Windows or macOS) and run it. 🔧 How to Fix Common Autodesk Licensing Errors autodesk licensing service 90346 free download
Open the application (formerly Autodesk Desktop App) on your computer. Log into your Autodesk account. Check the Updates tab. If the service is corrupted, you can reinstall
Autodesk Licensing Service updates use a different versioning format (such as v12, v13, or v14). There is no official "90.3.46" release [2]. Log into your Autodesk account
Many users search for external downloads because their current Autodesk software is throwing a license error (e.g., "The license manager is not functioning or is improperly installed").
The safest and easiest way to update your licensing service is through your desktop.
I can provide step-by-step instructions tailored to your exact situation.