If you have a legitimate subscription or perpetual license, you do not need a patcher. Instead, use the following official methods to manage your software: Generate a License File : Administrators can sign in to the Autodesk Account

However, I must emphasize that:

Upon launching the 2021 software, the user would select "Use a Network License" rather than "Sign In".

The Autodesk License Patcher 2021 is a software tool designed to activate or manage licenses for Autodesk products, such as AutoCAD, Revit, and others, for the year 2021. Here are some proper features associated with such tools: