I have been using Google to find a solution as to why guest (ubuntu) can't access internet. Host system is Windows XP. None of the solution didn't work for me. Solutions that worked for others: 1. Enabling NAT 2. Enabling shared internet connection
I think the problem is that my host and guest use by default different subnet masks (respectively 255.255.0.0 vs 255.255.255.0) assigned by DHCP. Configuring the guest manually to use the same subnet mask doesn't seem to help either. I guess I configured it incorrectly.