Issue: Not able to connect to network/internet.
Caused by: Ethernet interfaces are not enabled by default.
Step 1: First, type “nmcli d” command in your terminal for quick list ethernet card installed on your machine:
Step 2: Type “nmtui” command in your terminal to open Network manager. After opening Network manager chose “Edit connection” and press Enter (Use TAB button for choosing options).
Step 3: Now choose you network interfaces and click “Edit”
Step 4: Configure DHCP. Choose “Automatic” in IPv4 CONFIGURATION and check Automatically connect check box and press OK and quit from Network manager.
Step 5: Reset network services. Run
service network restart
Now test your connection.