Public bug reported: I installed WWAN card to a laptop and there was problem with connection. After debugging, I found that it crash on event “failed to open '/proc/sys/net/ipv6/conf/cdc-wdm0//use_tempaddr”. Disable ipv6 for broadband connection helped but it is not the right bugfix. Problem is that network interface for wwan card is registered as wwp0s20f0u2i12 – and exists file /proc/sys/net/ipv6/conf/wwp0s20f0u2i12/use_tempaddr. On the other hand network manager sees device (according to “nmcli device”) cdc-wdm0. Disabling consistent network device naming did not help – wwan interface had name wwan0 after that. HW: Dell Latitude e5570, WWAN – MDM,WRLES,DW5811E,E7,4G,HF. OS: Ubuntu 16.04.2 64bit, Kernel 4.4.0-64-generic
ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.2.2-0ubuntu0.16.04.3 ProcVersionSignature: Ubuntu 4.4.0-65.86-generic 4.4.49 Uname: Linux 4.4.0-65-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Sun Mar 5 10:59:33 2017 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-10-26 (130 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) IpRoute: default via 100.85.58.157 dev wwp0s20f0u2i12 proto static metric 700 100.85.58.152/29 dev wwp0s20f0u2i12 proto kernel scope link src 100.85.58.156 metric 700 169.254.0.0/16 dev wwp0s20f0u2i12 scope link metric 1000 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: [connection] wifi.powersave = 0 mtime.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: 2016-11-24T19:51:44.546944 nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH cdc-wdm0 gsm connected /org/freedesktop/NetworkManager/Devices/3 T-Mobile Default e45dd5e2-7424-4403-adae-4defe6c707b7 /org/freedesktop/NetworkManager/ActiveConnection/3 wlp2s0 wifi disconnected /org/freedesktop/NetworkManager/Devices/1 -- -- -- enp0s31f6 ethernet unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.2 connected started full enabled enabled enabled enabled enabled ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1670093 Title: WWAN card connection failed if ipv6 is enabled Status in network-manager package in Ubuntu: New Bug description: I installed WWAN card to a laptop and there was problem with connection. After debugging, I found that it crash on event “failed to open '/proc/sys/net/ipv6/conf/cdc-wdm0//use_tempaddr”. Disable ipv6 for broadband connection helped but it is not the right bugfix. Problem is that network interface for wwan card is registered as wwp0s20f0u2i12 – and exists file /proc/sys/net/ipv6/conf/wwp0s20f0u2i12/use_tempaddr. On the other hand network manager sees device (according to “nmcli device”) cdc-wdm0. Disabling consistent network device naming did not help – wwan interface had name wwan0 after that. HW: Dell Latitude e5570, WWAN – MDM,WRLES,DW5811E,E7,4G,HF. OS: Ubuntu 16.04.2 64bit, Kernel 4.4.0-64-generic ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.2.2-0ubuntu0.16.04.3 ProcVersionSignature: Ubuntu 4.4.0-65.86-generic 4.4.49 Uname: Linux 4.4.0-65-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Sun Mar 5 10:59:33 2017 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-10-26 (130 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) IpRoute: default via 100.85.58.157 dev wwp0s20f0u2i12 proto static metric 700 100.85.58.152/29 dev wwp0s20f0u2i12 proto kernel scope link src 100.85.58.156 metric 700 169.254.0.0/16 dev wwp0s20f0u2i12 scope link metric 1000 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: [connection] wifi.powersave = 0 mtime.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: 2016-11-24T19:51:44.546944 nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH cdc-wdm0 gsm connected /org/freedesktop/NetworkManager/Devices/3 T-Mobile Default e45dd5e2-7424-4403-adae-4defe6c707b7 /org/freedesktop/NetworkManager/ActiveConnection/3 wlp2s0 wifi disconnected /org/freedesktop/NetworkManager/Devices/1 -- -- -- enp0s31f6 ethernet unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.2 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1670093/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp