Select Security tab and click on Custom level. button.In Windows Search box type Internet Options and hit Enter.Option 2: Verify that Active X controls are enabled
Note: If AutoCAD version is 2018 is being used, install the Autodesk License Service (圆4) - 5.1.5 Hotfix installation. To change the status of the service to Running, right-click its empty Status cell and select Start from the context menu.In the Properties dialog, use the drop-down menu to change Startup Type to Automatic and click OK.Consult with an IT administrator if necessary.) In the Startup Type column, right-click Manual and select Properties. ( Note: if the service cannot be started, make sure the Windows profile being used has enough permissions.If the above mentioned service is not running, go to step 4.
Click Start (or right-click Start on Windows 10) and choose Run.Option 1: Check whether the FlexNet Licensing Service is running for versions 2017 to 2019 and Autodesk Desktop Licensing Service for version 2020. If this error occurs on the system that has LogMeIn installed, refer to Error: "The License manager is not functioning or is improperly installed" on systems with LogMeIn installed. otherwise, refer to the following possible solutions: