Why doesn't the local network start on the virtual machine?

Question

System administration

Good afternoon! There is a server 2008R2 Standart sp1. Hyper-V is up on it. 3 machines are spinning on it: 2 Centos 7 (DNS and LDAP) and Centos 6 (OpenVPN). There are frequent power cuts in the office (once a day). UPS costs.
When you start the server on OpenVPN, the local network does not rise until you connect via the Hyper-V console to the machine. After authorization, a local network, Internet, SSH appear on the server, but OpenVPN has to be started manually. OpenVPN was not raised by me, so I have to administer what I have. On other machines everything starts as expected.

network         0:off   1:off   2:on    3:on    4:on    5:on    6:off

openvpn         0:off   1:off   2:on    3:on    4:on    5:on    6:off

TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="Wired connection 1"
UUID=13f5cc30-1623-4b0b-8e1e-8ebd05a8b0c2
ONBOOT=yes
LAST_CONNECT=1434943700

What could be the reason for the network not working?!

Answer 1

Some kind of bug, obviously. Try updating all windows. If it doesn't help, shove a script into the scheduler that, after rebooting the machine, will ping a couple of sites. Just so that Windows itself initiates some kind of network exchange. A crutch, of course, but it can help.