: Even perpetual licenses for Revit 2021 and later must go online at least once to register and activate before they can be used offline.
Compare to see which fits your budget.
Sometimes the crack fails because Revit is set to "User License" (Sign-in) instead of "Network License." Navigate to: C:\ProgramData\Autodesk\AdskLicensingService\ revit 2021 crack internet connection required