How do you successfully use 2FA with TeamViewer 12.0.75813 installed on a Windows OS without having to use login.teamviewer.com? I always have to log in there first, select a friend's PC, and then connect for it to login on the software itself. All it does for me now if I attempt to do it without using the site is tell me that my login credentials are incorrect when I know they are, since it is what I use on the site.
Really disappointing that the v13 client STILL doesn't support logging in with two factor auth which should have been a priority. Can only use login.teamviewer.com which not only asks for your password and 2FA, but also an annoying CAPTCHA which takes forever, sometimes 4 pages deep.