Using a combination of clues from http://discourse.ubuntu.com/t/remote-desktop-sharing-in-ubuntu-14-04/1640 (which is all about VNC access) and https://bugs.launchpad.net/ubuntu/+source/vino/+bug/1281250 (which discusses the bug introduced into Vino) I have managed to resolve the matter.
Essentially you have to disable encryption on remote desktop access in Gnome due to a bug that has come to surface in Vino. However some threads tell you uncheck it in the wrong place. Follow these guidelines and you should be able to resolve it quickly.
dconf > org > gnome > desktop > remote-access > require-encryption - uncheck
dconf > desktop > gnome > remote-access > enabled - uncheck
Here is how you do it:
- First make sure
Desktop Sharing is set up properly.
dconf-tools by typing in Terminal
sudo apt-get install dconf-tools
Require Encryption (don't click on Set to Default as it rechecks it)
- Exit dconf-Editor
It should now work. Tested through a reboot and all good.
Hope it helps.
(I have got a screen shot of dconf but don't have enough points on here to post it - I am sure everyone can work it out for themselves though! :-) )