Yes, you should be able to make it so that you can run the QlikView reload and the Qlik Web Connectors on different servers (which is I think what you are asking) - you will need to set up the Qlik Web Connectors to allow remote access and then you should see in the generate load script it gives you that it has http(s)://YOURSERVER:5555... rather than http://localhost:5555....
Regarding the google group, could you clarify a little what this means? Are you able to authenticate with the connector using this? It sounds to me like that is more like an a group which you add a number of emails to and an email sent to it goes to everyone in the group but I am not sure yet from your description.
Thanks for your reply. Do you know How much does it costs to install Qlik web connectors with in our server. As of now we want to use only standard web connectors.
Regarding the google group, I've an authentication key which was generated from my email. Does it work when I move to server and reload?