Comment 0 for bug 1529085

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.