Public bug reported: Reporting this against network manager for want of better information. Sorry for the imprecise report - I will be glad to observe and update. Since upgrading to 16.10 I have had problems with my USB "ethernet" network connection provided by a tethered Android 2.3 device. Initial connection works well, but after a while Ubuntu looses connection, indicated by the nm-applet icon switching to "wifi connecting". Ubuntu seems unable to obtain an IP address. Neither rebooting the laptop nor restarting the phone help, but after a while the problem goes away on its own. In the meantime I am able to tether using the phone's wireless hotspot functionality.
ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: network-manager 1.2.4-0ubuntu1 ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0 Uname: Linux 4.8.0-26-generic x86_64 ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Tue Nov 8 11:00:59 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-05-31 (160 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH eno1 ethernet connected /org/freedesktop/NetworkManager/Devices/2 Wired connection 2 a48d1ead-bcd2-37cb-8731-1d687642ff2c /org/freedesktop/NetworkManager/ActiveConnection/7 wlp2s0 wifi connected /org/freedesktop/NetworkManager/Devices/1 clear 4c47ad41-0865-488f-bcf6-2cc10a2d5a87 /org/freedesktop/NetworkManager/ActiveConnection/6 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/3 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.4 connected started full enabled enabled enabled enabled enabled ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug yakkety -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1640112 Title: Irregular USB network tethering failures To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1640112/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs