Public bug reported:
I'm using Ubuntu 15.04. After upgrading from 14.10 the wireless connection
doesn't work on my Notebook Acer Travelmate 5720G
Network Manager scan and find successfully all the available wireless networks
on start-up, but when i try to connect with one of them, Network-manager ALWAYS
display the "connecting..." animation and doesn't connect (i can't access to
internet and not even to Access point admin page).Seem that it try to connect
but can't do it, also waiting for a long time.
My access point (Digicom Michelangelo wave 150 C) uses wpa2 encryption and i
haven't modified it, also my notebook hardware
configuration is not changed (i use the builtin wireless network card provided
by my notebook: no external card).
Using Ubuntu 14.10 the wifi connection worked correctly. Also, using the same
wireless access point, but with another notebook (Toshiba Tecra with Ubuntu
14.10) i have no problems, everything is ok.
Using the cable connection (eg: eth0 interface ) everything works.
Trying to disconnect and reconnect the wireless, delete and recreate the
network, reinstall the network-manager and network-related packages the problem
persist.
A strange thing is that the network manager shows the "connecting..." animation
but opening the network-manager menu show the "Disconnect" menu entry (like
when you are connected, but you are not connected).
No system crash or other problems are shown.
Here iwconfig output:
wlan0 IEEE 802.11abg ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
The uname -a output is:
Linux my-pc 3.19.0-22-generic #22-Ubuntu SMP Tue Jun 16 17:14:22 UTC 2015 i686
i686 i686 GNU/Linux
network-manager version installed is: 0.9.10.0-4ubuntu15.1
Before submitting the bug I have installed all the available updates at
15 july 2015 but the problem persist.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: network-manager 0.9.10.0-4ubuntu15.1
ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
Uname: Linux 3.19.0-22-generic i686
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: i386
CurrentDesktop: Unity
Date: Wed Jul 15 23:57:06 2015
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2013-05-26 (780 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
IpRoute:
default via 192.168.1.254 dev eth0 proto static metric 1024
169.254.0.0/16 dev eth0 scope link metric 1000
192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.1
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to vivid on 2015-05-14 (62 days ago)
nmcli-con:
NAME UUID TYPE
TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH
ACTIVE DEVICE STATE ACTIVE-PATH
Connessione via cavo 1 f2f696e8-00df-4547-8669-feac4d6a4c66 802-3-ethernet
1436997193 mer 15 lug 2015 23:53:13 CEST yes no
/org/freedesktop/NetworkManager/Settings/1 yes eth0 activated
/org/freedesktop/NetworkManager/ActiveConnection/3
horizon_net dc7a0ebf-ecd9-4341-af77-45b587f8f93e 802-11-wireless
1436735226 dom 12 lug 2015 23:07:06 CEST yes no
/org/freedesktop/NetworkManager/Settings/0 no -- -- --
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
CONNECTION CON-UUID CON-PATH
eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/1
Connessione via cavo 1 f2f696e8-00df-4547-8669-feac4d6a4c66
/org/freedesktop/NetworkManager/ActiveConnection/3
wlan0 wifi disconnected /org/freedesktop/NetworkManager/Devices/3 --
-- --
lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 --
-- --
irda0 unknown unmanaged /org/freedesktop/NetworkManager/Devices/2 --
-- --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2:
Error: Object 'nm' is unknown, try 'nmcli help'.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 vivid
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https://bugs.launchpad.net/bugs/1475042
Title:
ubuntu 15.04 Netowrk-manager doesn't connect with wireless network
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