One more thing.....
When using vncviewer make sure you specify the display #.
vncviewer 192.168.1.227 would attempt to connect to 0 which is port 5900 ..... on which
you don't have a server running.
You want.....
vncviewer 192.168.1.227:1 to connect to port 5901 !
Use the proper IP address, of course. :-)