PCo connection to wonderware OPC server

Hi Experts

I have seen many posting at this forum for the error message "No OPC Servers found" which comes while connecting Pco with Other OPC servers.

I think the solutions depends on the OPC server we connect. That is why I thought to post the query.

Here is my scenario.

1) Pco 15.0.0.1959

2) Wonderware OPC server

While creating a source system with agent OPC DA , I have entered Wonderware server IP address as Machine  and get error as "No OPC Servers found" .

But If I enter localhost as Machine I am able to see some entries in the list. I have attached both screen shots.

Please let me know is there any additional components needs to be installed.

Thanks

Shaji