Next, quit out of Cinema 4D from the Force Quit menu (this is a very important step as this process will not work if the application is running).
Open a Finder window and head to ~/Library/Preferences/MAXON via Finder's Go > Go to Folder command. This is from Maxon themselves: 'To fix this issue all you have to do is delete the C4D preferences to restore the defaults.
Hey David, I believe I have the solution for you. You don't have to do that 'Setup License Server' part.