If, like me, you’ve recently upgraded to Ubuntu 14.04 only to find out that for whatever reason you can no longer VNC to that machine anymore (either from Windows or even an existing Linux install) have no fear because I’ve got the fix for you!
Simply open up a terminal and run the following line:
gsettings set org.gnome.Vino require-encryption false
Obviously if you use VNC encryption you may not want to do this but if you’re like me and just use VNC on the local network it should be safe enough to disable.
Previously I was running KDE 4.3.3 on top of Fedora 11 (for the first experiment) and KDE 4.6.5 on top of Gentoo (for the second experiment).