Hyper V – connectivity issues detected, check connection of network interface

Hello,
I try to run the sandbox using Hyper V on windows 8.1

CentOS runs, all the modules initialize “OK” except:
Bringing up interface eth0: Device eth0 does not seem to be present, delaying initialization – “Failed”

and then at the end of the initialization I get:
“connectivity issues detected, check connection of network interface”

I followed the steps from :
http://hortonworks.com/wp-content/uploads/unversioned/pdfs/InstallingHortonworksSandbox2onWindowsusingHyper-V.pdf

The only difference from the example is that I use 192.168.56.11 instead of 192.168.56.1 for IP Address (due to a conflict) and an ethernet connection instead of a wifi….

please advise

thank you