Add server error

["Nicole Lim" <nicole(dot)lim(at)ocean-is(dot)com>]

Hi there,

I have problem to add server by using the IP address like 192.168.xxx.xxx. It says the server refused to listen. I followed the guide by adding the line at the pg-hba but still the same. 
Also, when I'm using the psqlodbc from the client machine, I can't connect. I can only connect using the Odbc when I'm at the local.

Hope you can give me some insight.

Thanks,
Nicole.