Question to an old problem:unable to connect to host: A socket operation was attempted to an unreachable host (10065)

[Jerry Sloan]

I have read all of the postings about this problem but didn't see a
solution. I am attempting to connect to a Fedora 9 x86_64 RealVnc server
with RealVnc viewer from an XP box and get the error message in subject
line. If I missed the solution please accept my apology for this post and
please point me in the correct direction to fix

Thanks in Advance 

Jerry