Open Command Prompt and type: ping www.google.com
What you will probably see is “could not resolve host”. If you do, then confirm that your DNS is pointing to the wrong place by typing: ipconfig /all
Down at the bottom you will see the DNS Server(s) you are using. If it is set to 127.0.0.1 then you need to find a “real” DNS server.
On the HOST operating system open a command prompt and type: ipconfig /all and note the DNS server.
Back on the guest VM, open up the TCP/IP properties by going to Network Sharing Center and clicking the connection. On the Ethernet Status dialog click Properties. On the Ethernet Properties dialog click Internet Protocol Version 4 (TCP/IPv4) and click Properties:
On the TCP/IP Properties dialog, enter the address of your HOST’s DNS server and click OK
Go back to your command prompt and you should now be able to ping www.google.com