How should I configure VirtualBox to be able to connect to the internet from the guest OS
Try this:


Be sure that you have installed the latest version of Guest Additions to the VM
Turn off the VM
Under the network adapter configuration choose bridged mode
Then click in advanced and change the adapter type to Intel PRO/1000 MT Server (82545EM). -Be sure to enable the checkbox "Cable Connected"


Worked for me, hope it helps