I am using Asus U56E laptop and after installing Ubuntu 12.10 alongside Windows 8, I am unable to connect to the Wireless. I have been trying to solve this problem since two weeks and couldn't solve it. Please help. Any answer would be appreciated.
Here are some command-line results.
lspci -v | grep -iA 7 network
ubuntu@ubuntu:~$ lspci -v | grep -iA 7 network
02:00.0 Network controller: Intel Corporation Centrino Wireless-N + WiMAX 6150 (rev 67)
Subsystem: Intel Corporation Centrino Wireless-N + WiMAX 6150 BGN
Flags: bus master, fast devsel, latency 0, IRQ 52
Memory at de800000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
lsmod | grep iwlwifi
ubuntu@ubuntu:~$ lsmod | grep iwlwifi
iwlwifi 386826 0
mac80211 539908 1 iwlwifi
cfg80211 206566 2 iwlwifi,mac80211
ubuntu@ubuntu:~$ dmesg | grep iwlwifi
[ 57.846261] iwlwifi: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[ 57.846264] iwlwifi: Copyright(c) 2003-2012 Intel Corporation
[ 57.846336] iwlwifi 0000:02:00.0: >pci_resource_len = 0x00002000
[ 57.846338] iwlwifi 0000:02:00.0: >pci_resource_base = ffffc90000c7c000
[ 57.846341] iwlwifi 0000:02:00.0: >HW Revision ID = 0x67
[ 57.846438] iwlwifi 0000:02:00.0: >irq 52 for MSI/MSI-X
[ 59.558335] iwlwifi 0000:02:00.0: >loaded firmware version 41.28.5.1 build 33926
[ 59.558514] iwlwifi 0000:02:00.0: >CONFIG_IWLWIFI_DEBUG disabled
[ 59.558516] iwlwifi 0000:02:00.0: >CONFIG_IWLWIFI_DEBUGFS enabled
[ 59.558517] iwlwifi 0000:02:00.0: >CONFIG_IWLWIFI_DEVICE_TRACING enabled
[ 59.558519] iwlwifi 0000:02:00.0: >CONFIG_IWLWIFI_DEVICE_TESTMODE enabled
[ 59.558520] iwlwifi 0000:02:00.0: >CONFIG_IWLWIFI_P2P disabled
[ 59.558522] iwlwifi 0000:02:00.0: >Detected Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BGN, REV=0x84
[ 59.558583] iwlwifi 0000:02:00.0: >L1 Disabled; Enabling L0S
[ 59.569083] iwlwifi 0000:02:00.0: >device EEPROM VER=0x557, CALIB=0x6
[ 59.569085] iwlwifi 0000:02:00.0: >Device SKU: 0x150
[ 59.569087] iwlwifi 0000:02:00.0: >Valid Tx ant: 0x1, Valid Rx ant: 0x3
[ 59.569100] iwlwifi 0000:02:00.0: >Tunable channels: 13 802.11bg, 0 802.11a channels
[ 70.208469] iwlwifi 0000:02:00.0: >L1 Disabled; Enabling L0S
[ 70.208648] iwlwifi 0000:02:00.0: >Radio type=0x1-0x2-0x0
[ 70.366319] iwlwifi 0000:02:00.0: >L1 Disabled; Enabling L0S
[ 70.366470] iwlwifi 0000:02:00.0: >Radio type=0x1-0x2-0x0
sudo lshw -c network
ubuntu@ubuntu:~$ sudo lshw -c network
*-network
description: Wireless interface
product: Centrino Wireless-N + WiMAX 6150
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 67
serial: 40:25:c2:84:99:c4
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.5.0-17-generic firmware=41.28.5.1 build 33926 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:52 memory:de800000-de801fff
*-network
description: Ethernet interface
product: AR8151 v2.0 Gigabit Ethernet
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: c0
serial: 54:04:a6:2b:6a:ef
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI latency=0 link=no multicast=yes port=twisted pair
resources: irq:54 memory:dd400000-dd43ffff ioport:a000(size=128)
ifconfig
ubuntu@ubuntu:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 54:04:a6:2b:6a:ef
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:176 errors:0 dropped:0 overruns:0 frame:0
TX packets:176 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:14368 (14.3 KB) TX bytes:14368 (14.3 KB)
wlan0 Link encap:Ethernet HWaddr 40:25:c2:84:99:c4
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
iwconfig
ubuntu@ubuntu:~$ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
iwlist scan
ubuntu@ubuntu:~$ iwlist scan
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 No scan results
nm-tool
ubuntu@ubuntu:~$ nm-tool
NetworkManager Tool
State: disconnected
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: atl1c
State: unavailable
Default: no
HW Address: 54:04:A6:2B:6A:EF
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: disconnected
Default: no
HW Address: 40:25:C2:84:99:C4
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
hypeness2: Infra, 00:21:29:DA:08:4F, Freq 2462 MHz, Rate 54 Mb/s, Strength 42 WPA
love: Infra, 68:7F:74:17:02:66, Freq 2412 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
DIRECT-MwSCX-3400Pamela: Infra, 02:15:99:A3:3F:AC, Freq 2412 MHz, Rate 54 Mb/s, Strength 22 WPA2
router: Infra, 1C:AF:F7:D6:76:F3, Freq 2417 MHz, Rate 54 Mb/s, Strength 20 WPA2
wing: Infra, E8:40:F2:34:E4:F7, Freq 2437 MHz, Rate 54 Mb/s, Strength 20 WPA WPA2
132LINKSYS: Infra, 00:1A:70:80:1F:E9, Freq 2437 MHz, Rate 54 Mb/s, Strength 57 WEP
VMITTAL: Infra, E0:46:9A:3C:F0:C4, Freq 2412 MHz, Rate 54 Mb/s, Strength 27 WEP
HP-Print-10-LaserJet 1025: Infra, 7C:E9:D3:7E:F8:10, Freq 2437 MHz, Rate 54 Mb/s, Strength 59
ACNBB: Infra, 00:26:75:22:A6:2F, Freq 2437 MHz, Rate 54 Mb/s, Strength 20
SATKAIVAL: Infra, 00:18:E7:CE:69:A6, Freq 2412 MHz, Rate 54 Mb/s, Strength 69 WPA WPA2
hypeness: Infra, B8:E6:25:24:C3:B1, Freq 2437 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
CSNetwork: Infra, BC:14:01:58:C5:88, Freq 2437 MHz, Rate 54 Mb/s, Strength 25 WPA WPA2
tharma: Infra, BC:14:01:E2:06:18, Freq 2412 MHz, Rate 54 Mb/s, Strength 15 WPA WPA2
Active2.4: Infra, 10:6F:3F:0E:F3:8E, Freq 2462 MHz, Rate 54 Mb/s, Strength 17 WPA WPA2
ACNBB: Infra, 00:26:75:58:4E:7A, Freq 2437 MHz, Rate 54 Mb/s, Strength 85
KO: Infra, BC:14:01:2E:AF:A8, Freq 2452 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
FEAR: Infra, 00:18:4D:C0:BC:58, Freq 2462 MHz, Rate 54 Mb/s, Strength 17 WPA
Pamela: Infra, BC:14:01:52:F6:F8, Freq 2412 MHz, Rate 54 Mb/s, Strength 24 WPA WPA2
bvrk2: Infra, 78:CD:8E:7B:3C:79, Freq 2457 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
BELL030: Infra, D8:6C:E9:17:AF:09, Freq 2462 MHz, Rate 54 Mb/s, Strength 22 WPA2
Desai: Infra, 00:1D:7E:52:FB:C5, Freq 2437 MHz, Rate 54 Mb/s, Strength 14 WEP
Sritharan: Infra, BC:14:01:E5:59:78, Freq 2462 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
PFN: Infra, 00:13:10:8B:CF:45, Freq 2437 MHz, Rate 54 Mb/s, Strength 19 WEP
rfkill list all
ubuntu@ubuntu:~$ rfkill list all
0: asus-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: asus-wimax: WiMAX
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
so these are some more results
sudo modprobe -r iwlwifi
ubuntu@ubuntu:~$ sudo modprobe -r iwlwifi
sudo modprobe iwlwifi 11n_disable=1
ubuntu@ubuntu:~$ sudo modprobe iwlwifi 11n_disable=1
echo "blacklist asus_wmi" | sudo tee -a /etcmodprobe.d/blacklist.conf
ubuntu@ubuntu:~$ echo "blacklist asus_wmi" | sudo tee -a /etc/modprobe.d/blacklist.conf
blacklist asus_wmi
echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
ubuntu@ubuntu:~$ echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
options iwlwifi 11n_disable=1
sudo modprobe -rfv iwlwifi
ubuntu@ubuntu:~$ sudo modprobe -rfv iwlwifi
rmmod /lib/modules/3.5.0-17-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko
rmmod /lib/modules/3.5.0-17-generic/kernel/net/mac80211/mac80211.ko
rmmod /lib/modules/3.5.0-17-generic/kernel/net/wireless/cfg80211.ko
sudo modprobe -v iwlwifi
ubuntu@ubuntu:~$ sudo modprobe -v iwlwifi
insmod /lib/modules/3.5.0-17-generic/kernel/net/wireless/cfg80211.ko
insmod /lib/modules/3.5.0-17-generic/kernel/net/mac80211/mac80211.ko
insmod /lib/modules/3.5.0-17-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko 11n_disable=1
