You may see a message “ LAN Cable is unplugged” or may be others. I struggled to get an answer over a day of my weekend. The solution is simple but as it took me so long to figure this out, I am writing it here. Hope it saves sometime for few.
Click the Network Connections (the last icon) on the VPC image. The “Settings for <> Window appears.
Select “Networking” and select appropriate wireless Adapter in the place holder for Adapter1 on the right hand side.
Once done…Bingo!!!…the internet just gallops..