Thanks for the replies. The "Internet dropping" issue started as soon as I installed this complete new Ubuntu Server 18.04 on the ASRock z370m Pro4 motherboard. Then added the GNOME Desktop, and had to change the Ethernet network configuration to use Netplan and NetworkManager service.
Note: I know the motherboard and the I219-V network interface work perfectly as the same new motherboard ran CentOS Server 7.4 (minimal) with an XFCE Desktop flawlessly for over a week. CentOS 7.4 uses NetworkManager service by default (unlike Ubuntu Server which does things very different than CentOS Server for the network connection. I only decided to try Ubuntu Server 18.04 to gain access to a package that had a newer version than CentOS Server had (CentOS focuses on stability over features and it shows). I can't use the upstream Ubuntu kernel for fear too much of my server setup (Nvidia graphics, etc) will break. I've already seen bugs in the Nvidia graphics driver from the Ubuntu PPA (a separate issue), so I don't want to add more issues to this Ubuntu server setup. This Ethernet interface dropping Internet connectivity network issue is all I want to focus on right now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785171 Title: Intel I219-V Ethernet Interface on Ubuntu Linux Using e1000e Driver keeps Dropping Internet Connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
