If you have a Single-User license, you must reset the license type. Use the Autodesk Licensing Support Tool to switch the product to "User" or "Sign In" mode. 2. Check the Network License Manager (Server Side)
Sometimes a "ghost" server address stays stuck in your system. Open (regedit).
On the license server, open (Windows) or run:
If you have tried all fixes above and still see Error 85440, gather: