If it was working fine until recently, but suddenly your VM seems to have lost network connectivity while the host seems to have normal internet connection, then maybe just try the following steps. This is an image showing an example of the settings you need (taken from this answer). This video provided the information I listed above, even though they are using a Windows 7 host with a Windows Server guest. Under Advanced, make sure Cable connected is checked onĪt that point you should be able to start a web browser in your VM and get a connection.Under Advanced, make sure Promiscuous Mode is set to Allow All.Under Advanced, make sure the machine is using the Desktop Adapter Type.It will probably be the eth adapter that shows an inet addr and shows data transfer next to RX bytes. You can check which adapter you are currently using by opening the terminal ( CTRL+ ALT+ T by default) and running ifconfig. I am using wireless so I chose eth0 which is my wireless network adapter. Select the name of the network adapter you are currently using on your host machine.Switched to Bridged Adapter in the Attached to drop-down menu.
Select the machine you cannot get internet on in the left pane.Here are the steps I took to solve my problem: I was having the same problem on Ubuntu 12.10 64bit using Virtualbox 4.2.22.