Created attachment 605572 [details]
the sreenshot show the error vividly
Description of problem:
as say in the summary
Version-Release number of selected component (if applicable):
Steps to Reproduce:
User can not connect with VNC client
The network interface is "NAT".
Hello Nie, Tao already reported that as bug 849095.
*** This bug has been marked as a duplicate of bug 849095 ***