For many users, version (which dates back to around April 2019 and is sometimes referred to as a hotfix) was a key update that addressed several issues present in the original 2020 product line licensing mechanisms.
Upgrading to or repairing your installation with version 9.0.3.46 fixes several persistent licensing glitches: Autodesk Licensing Service 9.0.3.46 Download
: The service periodically checks your license status to ensure that your use of Autodesk software remains valid. This helps in preventing unauthorized use. For many users, version (which dates back to
If you see this error after updating, the service failed to restart automatically. For many users
It acts as the "handshake" between your local software (like AutoCAD or Revit) and Autodesk's servers.