Network Manager can be quirky with things that involve changing some drivers not in a repository kernel version. It can sometimes behave as if it was not installed as a GUI application prior to such a change.
To ease my mind concerning this run the following again: nmcli connection show
And then run: nmcli connection up 'Wired connection 1' (or whichever you wish to activate)
Then run: nmcli dev status
This will show if the correct logical name 'enp0s25' of your device is listed as up. If all this is correct and there is still no connection make sure your firewall is configured correctly. Perhaps you changed it at some point and forgot about it. If all is well there and you are still not connected you can try changing the ifupdown plugin configuration in your /etc/NetworkManager/NetworkManager.conf file from false to true. I'm not on LL right now so the file may have a different location.
TC
To ease my mind concerning this run the following again: nmcli connection show
And then run: nmcli connection up 'Wired connection 1' (or whichever you wish to activate)
Then run: nmcli dev status
This will show if the correct logical name 'enp0s25' of your device is listed as up. If all this is correct and there is still no connection make sure your firewall is configured correctly. Perhaps you changed it at some point and forgot about it. If all is well there and you are still not connected you can try changing the ifupdown plugin configuration in your /etc/NetworkManager/NetworkManager.conf file from false to true. I'm not on LL right now so the file may have a different location.
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.