I'm running Parallels 11 on Mac OS X 10.11.1. None of my many Windows VMs can connect to the Internet. I've tried Windows XP, 7, 8.1, and 10, and all of them say they can't connect to the Internet. I've tried Explorer, Edge, and Safari, all with no luck. I don't try this often, so I'm not certain when it stopped working. Besides browsers, Windows also seems unable to install updates. I also have an Ubuntu VM; I can browse the Internet with Firefox, but recently I get an error message overtime the Ubuntu Software Center tries to install updates. All these VMs used to work flawlessly. What happened, and more importantly how can I fix it?