All Virtual Hosts point to Default Host

I have two domains names on godaddy pointing to IPAddress on ubuntu 15.04 server named with webmin, virtualmin and wordpress installed. My ubuntu server is on Vmware 10 and which in turn is on a Mac PC. All settings were carefully re-checked and configuration tested with no errors highlighted by virtualmin.

When I click on Service and then Preview Website in Virtualmin, the system correctly opens and points to the different domains and with their respective wordpress themes. But when I access through a browser on another computer both domain names default to that Virtual Host chosen as default in Virtualmin.

I have tried every possible approach but was not successful.

Urgent help needed.