Greetings to the whole Power community, for now I see little activity on the forum so I try to write myself every now and then at least when I have some little good news. I finally managed to fix Ubuntu's age-old network connection problem on Power. I spoke directly in the Ubuntu community, where questions of all kinds are asked, the site can be found by writing "askubuntu" on Google and from there they finally gave me the solution. The problem was fortunately not a bug as it appeared to me up to that moment but it was simply a conflict between the 2 software that manage the network on Ubuntu. I had read something about it but it was not clear enough in the places where I had read it and various information was missing. Explaining the problem in detail, the Ubuntu guys replied immediately asking me for output from Netplan and Network Manager and from there I began to understand that there was some possible conflict. The problem arises on Ubuntu simply because Ubuntu, unlike Fedora or Debian, for the server version, for some years now has decided to use Netplan, while it has left Network Manager unchanged on the Desktop version. It follows that if you can choose to install server or desktop, everything is fine because he installs the manager based on the version, if instead like us at Power, you are forced to install the server version, when you manually add the part desktop, the system does not know that it must deactivate 1 for the other obviously and installing Network Manager as well, it sends both into conflict and the result is the defect of the network I had. They immediately made me make the change with commands that deactivated Netplan and left all the network management to Network Manager and from that moment everything went fine.