Issue:
After installation and configuration of network during install, after reboot, the network is not available.
Solution:
1. Display the network card(s) installed/detected:
# nmcli d
example:
DEVICE . . TYPE . . . . STATE . . . . . . CONNECTION
en12abc . ethernet . . disconnected . --
2. Open the network manager:
# nmtui
a. Choose the option Edit a connection.
b. Locate your ethernet connection (ex. en12abc), click <Edit...>.
c. Update the IP4/IP6 configuration. Most of the configuration you entered before, will still be there.
(We had to fix the Gateway.)
d. Click the [ ] Automatically connect option. Click OK.
e. Back at the previous screen, choose Quit option.
3. Restart the Network Services.
# service network restart
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