Unable to connect to TigerVNC/xFCE session using VNC (Ubuntu)

Hi,

Recently installed the swizzin script on a dedi.

I am attempting to VNC on using VNCViewer.

The dedi is runnnig TigerVNC and has xFCE installed.

I can see port 5901 is open and listening
tcp LISTEN 0 5 [::1]:5901

When attempting to connect I just get 'Timed out waiting for a response'

I'm extremely confused...

Let me know what you need to see config wise or if you recommend another way to VNC on!

Thanks :)