First, removal of an USB WLAN adapter (wlan1):
Dec 24 00:45:10 zeus kernel: [19429.149039] usb 2-5: USB disconnect, device number 2
...
Dec 24 00:45:10 zeus NetworkManager[641]: <info> devices removed (path: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/net/wlan1, iface: wlan1)
Dec 24 00:45:10 zeus NetworkManager[641]: <info> radio killswitch /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/ieee80211/phy0/rfkill2 disappeared
Dec 24 00:45:10 zeus NetworkManager[641]: <info> (wlan1): supplicant interface state: completed -> disabled
After suspending:
Dec 24 04:22:28 zeus NetworkManager[641]: <info> sleep requested (sleeping: no enabled: yes)
...
Dec 24 04:22:28 zeus NetworkManager[641]: <info> sleeping...
Dec 24 04:22:28 zeus NetworkManager[641]: <info> (wlan1): device state change: activated -> unmanaged (reason 'sleeping') [100 10 37]
Dec 24 04:22:28 zeus NetworkManager[641]: <info> (wlan1): canceled DHCP transaction, DHCP client pid 20332
Dec 24 04:22:28 zeus NetworkManager[641]: <info> (wlan1): DHCPv4 state changed bound -> done
Dec 24 04:22:28 zeus NetworkManager[641]: <error> [1450927348.627824] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
After resuming:
Dec 24 11:45:33 zeus NetworkManager[641]: <info> wake requested (sleeping: yes enabled: yes)
...
Dec 24 11:45:33 zeus NetworkManager[641]: <info> waking up...
Dec 24 11:45:33 zeus NetworkManager[641]: <info> (eth0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37]
Dec 24 11:45:33 zeus NetworkManager[641]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 24 11:45:33 zeus kernel: [32468.742777] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Dec 24 11:45:34 zeus NetworkManager[641]: <info> (wlan1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Dec 24 11:45:34 zeus kernel: [32468.777806] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.021095] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
Dec 24 11:45:34 zeus NetworkManager[641]: <warn> (wlan1): failed to enable userspace IPv6LL address handling
Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.029979] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.030751] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
Dec 24 11:45:34 zeus NetworkManager[641]: <error> [1450953934.031323] [platform/nm-linux-platform.c:2782] do_change_link(): platform-linux: do-change-link: failure changing link 3: No such device (31)
Dec 24 11:45:34 zeus NetworkManager[641]: <info> NetworkManager state is now DISCONNECTED
At this point, not even eth0 works (it was there all the time). Network-manager works again if restarted using the script in init.d.
---
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: LXDE
DistroRelease: Ubuntu 15.10
IpRoute:
default via 10.223.0.3 dev eth0 proto static metric 100
10.223.0.0/16 dev eth0 proto kernel scope link src 10.223.35.120 metric 100
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
Package: network-manager 1.0.4-0ubuntu5.2
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
RfKill: Error: [Errno 2] No such file or directory
Tags: wily
Uname: Linux 4.2.0-22-generic x86_64
UpgradeStatus: Upgraded to wily on 2015-10-27 (58 days ago)
UserGroups: adm audio cdrom dialout dip docker lpadmin netdev plugdev sambashare sbuild sudo vboxusers video wireshark www-data
_MarkForUpload: True
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2015-03-16T23:56:17.808964
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/1 Ethernet connection 1 a4c8b8d2-517e-4293-90fb-3559cb7f95ce /org/freedesktop/NetworkManager/ActiveConnection/0
lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.
apport information