alexon this is most likely to be an Apache configuration or firewall issue.
Have you done the same thing in the past with other apps? You could compare your config file between the 2.
What happens when you try ? Do you see an Apache error page or does the browser fail to connect entirely?
If you see an Apache error page, I seem to remember an alias directive that might be necessary to specify more valid server names, alternatively there's also a way to define which virtual host is the default but I don't remember how that works exactly.
If your browser cannot connect at all, either Apache is not configured to listen to all addresses (that would be in the global config, not the virtual host) or your operating system firewall is blocking the port. What's your operating system and how did you install Apache?
