Why network interface fails to come up with error "Error: Connection activation failed." ?

Solution Verified - Updated -

Issue

  • link is properly detected on the system, still interface fails to come up with below error and thus network within the VM/system do not work.
~]# ifup ensX
Error: Connection activation failed.
~]# ifdown ensX
~]# ifup ensX
Error: Connection activation failed.
~]#

Environment

  • Red Hat Enterprise Linux 7.x
  • Network Configuration

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