apport information ** Attachment added: "ProcEnviron.txt" https://bugs.launchpad.net/bugs/1855297/+attachment/5311415/+files/ProcEnviron.txt
** Description changed: Ubuntu 20.04 network-manager: Installed: 1.20.4-2ubuntu2 Candidate: 1.20.4-2ubuntu2 Version table: *** 1.20.4-2ubuntu2 500 500 http://gb.archive.ubuntu.com/ubuntu focal/main amd64 Packages 100 /var/lib/dpkg/status After going to kernel 5.4, from 5.3, I noticed the network systray roundel going 'round and 'round. On closer examination I could see that the Wi-fi had connected but the Ethernet connection was "obtaining IP address" --> fail --> back to "obtaining IP address" and continually going around and around. Doing a "service NetworkManager stop" and quickly following up with "service NetworkManager start" fixes the situation. However, if you leave any kind of a gap between the stop and start the issue described above starts up again. I also left a freshly booted system for quite a while and went back to it but the issue was still there, until the workaround described above was performed. Booting up in to kernel 5.3 the issue is not seen and all network interfaces connect as expected. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: network-manager 1.20.4-2ubuntu2 Uname: Linux 5.4.2-050402-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu9 Architecture: amd64 CurrentDesktop: KDE Date: Thu Dec 5 15:24:51 2019 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2017-12-06 (729 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) SourcePackage: network-manager UpgradeStatus: Upgraded to focal on 2019-11-13 (21 days ago) nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.20.4 connected started full enabled enabled enabled enabled enabled --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu13 Architecture: amd64 CurrentDesktop: KDE DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2017-12-06 (734 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) NonfreeKernelModules: nvidia_modeset nvidia Package: network-manager 1.20.4-2ubuntu3 PackageArchitecture: amd64 Tags: focal Uname: Linux 5.4.2-050402-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: Upgraded to focal on 2019-11-13 (26 days ago) UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo wireshark _MarkForUpload: True + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu13 + Architecture: amd64 + CurrentDesktop: KDE + DistroRelease: Ubuntu 20.04 + InstallationDate: Installed on 2017-12-06 (734 days ago) + InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) + NonfreeKernelModules: nvidia_modeset nvidia + Package: network-manager 1.20.4-2ubuntu3 + PackageArchitecture: amd64 + Tags: focal + Uname: Linux 5.4.2-050402-generic x86_64 + UnreportableReason: The running kernel is not an Ubuntu kernel + UpgradeStatus: Upgraded to focal on 2019-11-13 (26 days ago) + UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo wireshark + _MarkForUpload: True -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1855297 Title: NetworkManager service fails to secure Ethernet connection when using kernel 5.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1855297/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs