vnc viewer no longer can connect?

Elixer

Lifer
May 7, 2002
10,371
762
126
Did a upgrade of Debian, and now, when I try to remote in, I get: "Unable to connect to VNC server using your chosen security setting"
It doesn't matter which one I pick, it always fails now. Before, it was on auto, and worked normally.

It isn't a port issue, or firewall.
Settings all look fine.

Tried different VNC servers as well on debian, and nothing works, always get the same message. Tried different windows vnc clients, didn't matter, still don't work.

I also installed mint on the same machine, and on that one, vnc works normally.

What could be causing this since the upgrade ?