I find that with all my C50LEs, whether running 11.1.015 or 11.1.031, the VNC service failed to start properly. After a lot of trial and error, I found that Autologin was the problem. After more trial and error I found that adding a 60 second delay solved the problem.
I am just curious if anyone else has had this problem. I also wanted to get this out there and hopefully save someone else the annoyance I went through.