I followed the link here http://support.microsoft.com/kb/306759 to change the remote desktop default port number in my Win8 Pro (x64) but it failed.
I have already set the firewall to allow the new port number and reboot the computer.
I can't use the new port number to connect but the port 3389 is still working. Seems the solution is not working for Win 8.
I've tried it in Win7 Pro (x86) and it works perfectly.
Did I miss something?