How to turn On the network configuration

Hi all,

I just install 7.6 and unfortunately my X start failed. So I am trying to register the rhel, but I don't have any connect(I am getting Network error). As I am having active Ethernet connection connected to my system but I just need to turn on my network.

Can anyone please guide mu how to do that as I am a newbie in Red-hat world.

Thanks in advance

Prem Rao