I have installed Win 7 in Virtual Box
I don't know how add network connections in windows 7.
My Win7 Network Configuration:
My Host OS:
Edit:
My network details in Ubuntu and Win7(VirtualBox)
Ubuntu is connected to Internet. No Proxy. Virtual Box uses NAT.
Best Answer
Probably, you should set up DNS in Windows. To do this:
Click on Change Adapter Settings link left of network view.
Right-click on your Network Adapter. Choose Properties.
This window will appear:
Select item that selected in the above example and click Properties.
This window will appear:
Enter these DNS servers into the appropriate fields:
Click OK twice. Your network should work fine.
Refer to this article for further information.