Public bug reported:
After I upgraded from Ubuntu 11.04 to 12.04, I can't connect to a
wireless network. I see the wireless network, and when I try to connect,
I get the authentication window up, and write in the key, but it never
connects.
My laptop is an Asus U31JG. The wireless network worked in 11.04 (a bit
slow, and sometimes disconnected, but it worked).
Here is my output from the WirelessTroubleshootingProcerure:
description: Wireless interface
product: RTL8191SEvA Wireless LAN Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@:03:00.0
logical name: wlan0
version: 10
serial: 1c:4b:d6:ed:b9:80
width: 32 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=rtl8192se
driverversion=3.2.0-26-generic-pae firmware=N/A latency=0 link=no multicast=yes
wireless=IEEE 802.11bgn
resources: irq:17 ioport:b000(size=256) memory:d4c0-d4c03fff
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@:04:00.0
logical name: eth0
version: 06
serial: bc:ae:c5:25:76:bb
size: 100Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet
physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw
ip=192.168.0.100 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:45 ioport:a000(size=256) memory:d3804000-d3804fff
memory:d380-d3803fff
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
loInterface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 00:15:E9:64:19:CC
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=68/70 Signal level=-42 dBm
Encryption key:on
ESSID:"Lund"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
12 Mb/s; 24 Mb/s; 36 Mb/s
Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000d325b6181
Extra: Last beacon: 340ms ago
IE: Unknown: 00044C756E64
IE: Unknown: 010882848B960C183048
IE: Unknown: 030106
IE: Unknown: DD0600032F010001
IE: Unknown: 2A0100
IE: Unknown: 32041224606C
IE: Unknown: DD0900037F01010017
IE: Unknown: DD0C00037F02010102A34000
IE: Unknown:
DD180050F202010103A427A442435E0062322F00
eth0 Interface doesn't support scanning.
auto lo
iface lo inet loopback
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller
[8086:0044] (rev 18)
00:01.0 PCI bridge [0604]: Intel Corporation Core Processor PCI Express x16
Root Port [8086:0045] (rev 18)
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor
Integrated Graphics Controller [8086:0046] (rev 18)
00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series
Chipset HECI Controller [8086:3b64] (rev 06)
00:1a.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller [8086:3b3c] (rev 06)
00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset
High Definition Audio [8086:3b56] (rev 06)
00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 1 [8086:3b42] (rev 06)
00:1c.1 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 2 [8086:3b44] (rev 06)
00:1c.5 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI
Express Root Port 6 [8086:3b4c] (rev 06)
00:1d.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller [8086:3b34] (rev 06)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge
[8086:2448] (rev a6)
00:1f.0 ISA bridge [0601]: Intel Corporation Mobile 5 Series Chipset LPC
Interface Controller [8086:3b09] (rev 06)
00:1f.2 SATA controller [0106]: Intel Corporation 5 Series/3400 Series Chipset
4 port SATA AHCI Controller [8086:3b29] (rev 06)
00:1f.6 Signal processing controller [1180]: Intel Corporation 5 Series/3400
Serie
