I've made some progress:
If I remove the following lines from /etc/network/interfaces:
iface wlan0 inet dhcp
iface wlan0 inet6 auto
NetworkManager errors "nm_urfkill_get_wlan_state: assertion 'self->wlan_proxy
!= NULL' failed" are gone:
systemctl status NetworkManager
● NetworkManager.service - Network Manager
Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor
preset: enabled)
Active: active (running) since Mon 2015-11-02 09:42:09 CET; 3s ago
Main PID: 5524 (NetworkManager)
CGroup: /system.slice/NetworkManager.service
└─5524 /usr/sbin/NetworkManager --no-daemon
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (tap1): device
state change: secondaries -> activated (reason 'none') [90 100 0]
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (tap1):
Activation: successful, device activated.
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr4): device
state change: secondaries -> activated (reason 'none') [90 100 0]
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr4):
Activation: successful, device activated.
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr11): device
state change: secondaries -> activated (reason 'none') [90 100 0]
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr11):
Activation: successful, device activated.
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr7): device
state change: secondaries -> activated (reason 'none') [90 100 0]
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr7):
Activation: successful, device activated.
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr3): device
state change: secondaries -> activated (reason 'none') [90 100 0]
Nov 02 09:42:10 msi-ge60-ubuntu NetworkManager[5524]: <info> (virbr3):
Activation: successful, device activated.
However, it seems that the module rtl8723ae is not loaded:
lsmod | grep -i rtl8723ae
modinfo rtl8723ae
libkmod: ERROR ../libkmod/libkmod-module.c:192 kmod_module_parse_depline:
ctx=0x55ae7dba3010
path=/lib/modules/4.2.0-16-generic/updates/drivers/net/wireless/rtlwifi/rtl8723com/rtl8723-common.ko
error=No such file or directory
libkmod: ERROR ../libkmod/libkmod.c:506 lookup_builtin_file: could not open
builtin file '/lib/modules/4.2.0-16-generic/modules.builtin.bin'
filename:
/lib/modules/4.2.0-16-generic/updates/drivers/net/wireless/rtlwifi/rtl8723ae/rtl8723ae.ko
modinfo: ERROR: could not get modinfo from 'rtl8723ae': No such file or
directory
lshw -C network
*-network UNCLAIMED
description: Network controller
product: RTL8723AE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:05:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: ioport:c000(size=256) memory:f7800000-f7803fff
This is strange because I can see some WiFi networks in the top right hand side
menu.
Furthermore, if I try to connect to a WiFi hotspot (Nexus 5 here),
NetworkManager tries to connect to the Nexus 5 bluetooth interface
(BC:F5:AC:4B:72:11):
Nov 2 09:43:17 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): Activation: starting connection 'Nexus 5 Network'
(3a1ff886-d78c-49c3-8984-a635c16ec9c9)
Nov 2 09:43:17 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): device state change: disconnected -> prepare (reason
'none') [30 40 0]
Nov 2 09:43:17 msi-ge60-ubuntu NetworkManager[5524]: <info> NetworkManager
state is now CONNECTING
Nov 2 09:43:17 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): device state change: prepare -> config (reason 'none') [40
50 0]
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <warn>
(BC:F5:AC:4B:72:11): Error connecting with bluez:
GDBus.Error:org.bluez.Error.Failed: Input/output error
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): device state change: config -> failed (reason
'bluetooth-failed') [50 120 44]
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <info> NetworkManager
state is now CONNECTED_LOCAL
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <info> Connection 'Nexus
5 Network' failed to autoconnect; 4 tries left
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <warn>
(BC:F5:AC:4B:72:11): Activation: failed for connection 'Nexus 5 Network'
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): device state change: failed -> disconnected (reason
'none') [120 30 0]
Nov 2 09:43:23 msi-ge60-ubuntu NetworkManager[5524]: <info> Device
'BC:F5:AC:4B:72:11' has no connection; scheduling activate_check in 0 seconds.
Now, if I try to turn off bluetooth, Ubuntu goes into airplane mode
which disables WiFi as well - I'm unable to turn off bluetooth alone.
Connecting Ubuntu Server to Nexus 5 Bluetooth: OK
Reconnecting it to Nexus 5 Hotspot: KO
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): device state change: config -> failed (reason
'bluetooth-failed') [50 120 44]
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <info> NetworkManager
state is now CONNECTED_LOCAL
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <info> Connection 'Nexus
5 Network' failed to autoconnect; 3 tries left
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <warn>
(BC:F5:AC:4B:72:11): Activation: failed for connection 'Nexus 5 Network'
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <info>
(BC:F5:AC:4B:72:11): device state change: failed -> disconnected (reason
'none') [120 30 0]
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <warn>
(BC:F5:AC:4B:72:11): failed to enable userspace IPv6LL address handling
Nov 2 10:00:35 msi-ge60-ubuntu NetworkManager[5524]: <info> Device
'BC:F5:AC:4B:72:11' has no connection; scheduling activate_check in 0 seconds.
This seems to indicate that WiFi & bluetooth interfaces are considered as the
same interface for this operation, which is very strange.
Ubuntu Server tries to connect to the bluetooth interface of the Nexus 5
hotspot, probably because the rtl8723ae module is not loaded.
If I try to manually load the rtl8723ae module in /etc/modules:
rtl8723ae
update-initramfs-u
shutdown -r now
It does not change anything.
I believe we should try to solve the errors shown in "modinfo
rtl8723ae".
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https://bugs.launchpad.net/bugs/1510648
Title:
[Ubuntu Server 15.04/15.10] Realtek RTL8723AE cannot connect to
WPA2/AES
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