I also own perpetual licenses for Autodesk 3dmax2009, Maya 2013, Max2013 and MotionBuilder 2013 (from the time I used to work with motion graphics and advertising for TV). I own the original serial, and the last time I installed these softwares on my actual PC is from since 2013, whenever I purchased an ASUS ROG Notebook with windows 7. I did not have the need to reinstall any of these softwares until now, however, If I ever need to install again and autodesk doesn’t allow me to activate these softwares, I would without any shadow of doubt (and not feeling any remorse) crack my legally owned softwares. All the money and time I spent on these softwares can not be lost! I even tried to move to blender, however I could not get used to it, even though Blender is an amazing piece of software and Free.
Anyway, my opinion is that those users who own perpetual licenses of Autodesk Softwares should crack their softwares if Autodesk doesn’t want to activate.
Cheers!