Problem Description: virtual machine is not connected to the machine network
Solving steps:
- Edit /etc/NetworkManager/NetworkManager.conf
sudo vi /etc/NetworkManager/NetworkManager.conf
The Managed = false changed: Managed = to true
- Restart network-manager service
sudo service network-manager restart
If we can not connect, then re-open the file and see the value of managed whether the "true", it is true, then restart it.