I turned on Hyper-V in Windows 2012 Standard so that I could install Windows 8.1 in a VM and test. The first problem I had was that the VM could not get to the outside world. I believe it had a 10.100.1.x address. I changed the filtering setting on the virtual switch so that it could see the outside world and rebooted 8.1. After reboot, it had a proper address and was able to see the outside world. Today, though, most of the computers are getting 10.100.1.x addresses! That means they don't work. I have tried a number of things to no avail. I just completely uninstalled hyper-v and rebooted the server. I will be checking shortly to see if that fixed things. Does Hyper-V have its own DHCP server? If so, how do I turn it off? I assume uninstalling will get rid of it, unless it is using the built-in Windows DHCP server in some weird way that is not showing up in the config.
If that doesn't do it, what do I need to do to get things back to normal?
Thanks!