I may have stumbled on a workaround for the disconnection issue, though I can't be sure.
To narrow down the time when the connection stops working, I left a ping to my router running, every 4 seconds. ping -i 4 192.168.1.1 > ping.log Several days later, I rebooted, forgot about the ping, and had the connection fail a couple of times that day. Whenever the ping has been running, the problem has not occurred; but of course, the incidence of problems is sufficiently low that it might be a coincidence. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1785171 Title: Intel I219-V Ethernet Interface on Ubuntu Linux Using e1000e Driver keeps Dropping Internet Connection Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Bug description: I've turned up many, many new server and workstation systems over the years on both Linux and Windows. Never seen anything like this behaviour I'm witnessing on Ubuntu Server 18.04 before where I simply lose Internet connectivity while using a browser. Ethernet interfaces usually either work or they don't work. I've configured the Intel I219-V Ethernet interface (wired Ethernet connection, there is no wifi on this system) using the e1000e driver for Ubuntu. The Ethernet connection is configured to use NetworkManager via Netplan on Ubuntu 18.04 LTS Server version. ASRock Z370m Pro4 motherboard. The Ethernet interface will drop the Internet connectivity when I'm using either the Firefox or Chrome browser. It usually happens when I'm using the search features of the browser. I can't figure out what would cause this type of behaviour. When the Internet connection drops, the only way to get back Internet connectivity is to disconnect the wired connection using the Ubuntu features and then re-connect (this restarts the NetworkManager service I notice). In the NetworkManager logs I do notice an "auth" error about a file or directory not found. I've never seen that before. Note: The auth error does not coincide with the loss of Internet connectivity, but it does proceed it. Often there can be many hours between the auth error and the actual loss of Internet connectivity. After I reconnect the connection (via re-starting the NetworkManager service) all will be fine for up to a day or so, but then I stress test it with a bunch of searches using the browser and usually I can get the Internet connectivity to drop again. Repeat the disconnect and reconnect process again (aka re-start NetworkManager) and the Internet connectivity will be fine again. The longest I've seen it go without an "Internet connectivity drop" issue is about 36 hours. I notice that the e1000e driver does not list the I219-V as a supported Ethernet interface in the Intel documentation for the Linux version of the driver. I'm not sure why that is. The I219-V is supposed to used another driver, but it's not clear there's a Linux version for of the driver for the I219-V. I'm really disappointed that I've run into this issue with Ubuntu Server LTS 18.04 on this motherboard. I had CentOS Server 7.4 (my standard server OS, a great Linux distro) on this same motherboard for a week with no issues, so I know the motherboard and the I219-V Ethernet interface are 100% good hardware wise and can work properly. CentOS 7.4 uses NetworkManager as the default for managing the Ethernet interface. The only reason I'm using Ubuntu Server 18.04 on this motherboard is because of a specific package that Ubuntu has a newer packaged version than CentOS. CentOS is extremely stable when it comes to basic server functionality. Hopefully, this bug with the I219-V Ethernet interface using the e1000e drive for Linux can be verified and a fix rolled out. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785171/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp