Is your cable plugged into your machine and a signal source? Just open network manager and turn on wired. You either have it turned off, or you've never used it, or nothing's plugged in, or all three. Your NIC is there or you wouldn't have wifi. Run: lspci The card should show up. Why are you running nmcli from root?
TC
TC
All opinions expressed and all advice given by Trinidad Cruz on this forum are his responsibility alone and do not necessarily reflect the views or methods of the developers of Linux Lite. He is a citizen of the United States where it is acceptable to occasionally be uninformed and inept as long as you pay your taxes.