### I was change Vagrant version downgrading to
Vagrant 1.8.7
### then got the network error
```
c:\www\htdocs\vagrant>vagrant destroy && vagrant up
default: Are you sure you want to destroy the 'default' VM? [y/N] y
==> default: Forcing shutdown of VM...
==> default: Destroying VM and associated drives...
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Importing base box 'CentOS-7-Vagrant-1505-x86_64-01'...
==> default: Matching MAC address for NAT networking...
==> default: Setting the name of the VM: vagrant_default_1488008124029_40480
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
default: Adapter 1: nat
default: Adapter 2: hostonly
==> default: Forwarding ports...
default: 80 (guest) => 8080 (host) (adapter 1)
default: 22 (guest) => 2222 (host) (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH username: vagrant
default: SSH auth method: private key
default: Warning: Remote connection disconnect. Retrying...
default:
default: Vagrant insecure key detected. Vagrant will automatically replace
default: this with a newly generated keypair for better security.
default:
default: Inserting generated public key within guest...
default: Removing insecure key from the guest if it's present...
default: Key inserted! Disconnecting and reconnecting using new SSH key...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
default: No guest additions were detected on the base box for this VM! Guest
default: additions are required for forwarded ports, shared folders, host only
default: networking, and more. If SSH fails on this machine, please install
default: the guest additions and repackage the box to continue.
default:
default: This is not an error message; everything may continue to work properly,
default: in which case you may ignore this message.
==> default: Configuring and enabling network interfaces...
The following SSH command responded with a non-zero exit status.
Vagrant assumes that this means the command failed!
# Down the interface before munging the config file. This might
# fail if the interface is not actually set up yet so ignore
# errors.
/sbin/ifdown 'eth1'
# Move new config into place
mv -f '/tmp/vagrant-network-entry-eth1-1488008160-0' '/etc/sysconfig/network-scripts/ifcfg-eth1'
# attempt to force network manager to reload configurations
nmcli c reload || true
# Restart network
service network restart
Stdout from the command:
Restarting network (via systemctl): [FAILED]
Stderr from the command:
usage: ifdown <configuration>
Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn' for details.
```