I am having trouble getting my docker-machine to create and run a new box. I have followed the directions on installing docker and manually setting up a switch with hyperv using these docs :
https://docs.docker.com/machine/drivers/hyper-v/

C:\WINDOWS\system32>docker-machine create -d hyperv --hyperv-virtual-switch "Virtual Switch Main" manager1
Running pre-create checks...
Creating machine...
(manager1) Copying C:\Users\Spartan.docker\machine\cache\boot2docker.iso to C:\Users\Spartan.docker\machine\machines\manager1\boot2docker.iso...
(manager1) Creating SSH key...
(manager1) Creating VM...
(manager1) Using switch "Virtual Switch Main"
(manager1) Creating VHD
(manager1) Starting VM...
(manager1) Waiting for host to start...

And it hangs there forever.... :( If any of you have suggestions on how to get it working from here that would be amazing!

When I run docker-machine ls
C:\WINDOWS\system32>docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
manager1 * hyperv Running Unknown IP not found
tensor * hyperv Running Unknown IP not found

C:\WINDOWS\system32>docker --version
Docker version 1.12.1, build 23cf638

C:\WINDOWS\system32>docker-machine --version
docker-machine version 0.8.1, build 41b3b25
run as administrator too

I have the same problem and found out I choose a wrong network card creating virtual switch. I am using WLAN, everything works fine after I change external network to Wireless card.