Linux VM's Wired Connection Doesn't Appears

If VM disconnects from the internet  even after restart.  

Here the following procedures: 

1. Run "ip a" command
2. Get the network interface enp0s3 (others are eth0,ens192)
3. Enable Network Interface run command  "sudo ip link set dev enp0s3 up"
4. Show dhclient info of enp0s3  run command "sudo dhclient -v enp0s3"
   
5. Restart Network Manager run following command
   • sudo service network-manager restart
   • sudo systemctl restart network-manager
   • Alternative command if the network-manager not works
   • sudo service network-manager restart
   • sudo systemctl restart NetworkManager
6. Check Status Network Manager run following command
   • sudo service network-manager status
   • sudo systemctl status network-manager
   • Alternative command if the network-manager not works
   • sudo service network-manager status
   • sudo systemctl status NetworkManager

References

ipcommand here

dhclient info here

restart network interface link1 link2