AR9227 causes Ubuntu 12.04 to freeze
I am going to follow the guideline from "HOWTO post a Wireless issue (ticket)" in describing my problem.
0) Problem briefly described
An old problem. Same happened on Ubuntu 10.04, 11.10, openSUSE 12.1 and Fedora 16.
Installed OS from a pendrive. Installation went well, no problem at all.
The OS can be personalised, configured and used as long as is not connected to the Internet. Internet is connected via home wireless connection. Connecting to it is not a problem. The problem is once it is connected, the OS freezes and has to be hard-shutdown.
Tried nohwcrypt=1 fix but did not work.
Even if the OS does not freeze immediately after connected, it freezes the moment the network is used e.g. checking for software updates.
Have not tried the cable connection. It is kind of impossible to set up one.
All info below were taken from Ubuntu with wireless disconnected. This thread is prepared on Windows.
1) Machine Brand and Model (PC/Laptop)
Code:
This is a custom built desktop PC.
Motherboard -- Asrock N68-S3 UCC
CPU -- AMD Phenom 2 X4 AM3 3.3 GHz
GPU -- MSI ATI Radeon HD 5450 1GB
RAM -- 8GB DDR3 1333
HDD -- 750GB SATA2 7200RPM, 80GB IDE 7200RPM (<---Ubuntu partition with 8GB swap)
PCI Wireless card -- TP-LINK TL-WN851ND
2) Wireless Brand, Model and Wireless Chipset:
Code:
xxxxx@asdf:~$ sudo lspci
00:00.0 RAM memory: NVIDIA Corporation MCP61 Host Bridge (rev a1)
00:01.0 ISA bridge: NVIDIA Corporation MCP61 LPC Bridge (rev a2)
00:01.1 SMBus: NVIDIA Corporation MCP61 SMBus (rev a2)
00:01.2 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a2)
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev a3)
00:02.1 USB controller: NVIDIA Corporation MCP61 USB 2.0 Controller (rev a3)
00:04.0 PCI bridge: NVIDIA Corporation MCP61 PCI bridge (rev a1)
00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2)
00:06.0 IDE interface: NVIDIA Corporation MCP61 IDE (rev a2)
00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
00:08.0 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2)
00:08.1 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2)
00:09.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:0b.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:0c.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
01:08.0 Network controller: Atheros Communications Inc. AR9227 Wireless Network Adapter (rev 01)
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cedar PRO [Radeon HD 5450]
02:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Cedar HDMI Audio [Radeon HD 5400/6300 Series]
Code:
xxxxx@asdf:~$ sudo lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 046d:081b Logitech, Inc. Webcam C310
Bus 002 Device 002: ID 046d:c52e Logitech, Inc.
Code:
xxxxx@asdf:~$ lspci -nn | grep 'Atheros'
01:08.0 Network controller [0280]: Atheros Communications Inc. AR9227 Wireless Network Adapter [168c:002d] (rev 01)
3) Check interface:
Code:
xxxxx@asdf:~$ sudo ifconfig
eth0 Link encap:Ethernet HWaddr 00:25:22:d4:72:93
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)
Interrupt:44 Base address:0x2000
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:256 errors:0 dropped:0 overruns:0 frame:0
TX packets:256 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:20704 (20.7 KB) TX bytes:20704 (20.7 KB)
wlan0 Link encap:Ethernet HWaddr f4:ec:38:db:dd:55
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)
Code:
xxxxx@asdf:~$ sudo iwconfig
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
eth0 no wireless extensions.
Code:
xxxxx@asdf:~$ iwconfig wlan0
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
4) check for modules:
Code:
xxxxx@asdf:~$ lsmod
Module Size Used by
dm_crypt 23125 1
snd_hda_codec_hdmi 32474 1
snd_hda_codec_via 51398 1
arc4 12529 2
rfcomm 47604 0
bnep 18281 2
bluetooth 180104 10 rfcomm,bnep
joydev 17693 0
psmouse 87603 0
ppdev 17113 0
snd_hda_intel 33773 5
snd_usb_audio 122982 1
snd_hda_codec 127706 3 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel
snd_pcm 97188 4 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec
snd_hwdep 13668 2 snd_usb_audio,snd_hda_codec
snd_usbmidi_lib 25395 1 snd_usb_audio
snd_seq_midi 13324 0
snd_rawmidi 30748 2 snd_usbmidi_lib,snd_seq_midi
ath9k 132390 0
snd_seq_midi_event 14899 1 snd_seq_midi
mac80211 506816 1 ath9k
snd_seq 61896 2 snd_seq_midi,snd_seq_midi_event
snd_timer 29990 2 snd_pcm,snd_seq
snd_seq_device 14540 3 snd_seq_midi,snd_rawmidi,snd_seq
ath9k_common 14053 1 ath9k
ath9k_hw 411112 2 ath9k,ath9k_common
ath 24067 3 ath9k,ath9k_common,ath9k_hw
parport_pc 32866 1
snd 78855 24 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_pcm,snd_hwdep,snd_usbmidi_lib,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
cfg80211 205544 3 ath9k,mac80211,ath
uvcvideo 72627 0
videodev 98259 1 uvcvideo
mac_hid 13253 0
serio_raw 13211 0
v4l2_compat_ioctl32 17128 1 videodev
edac_core 53746 0
k10temp 13166 0
soundcore 15091 1 snd
edac_mce_amd 23709 0
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
i2c_nforce2 13058 0
lp 17799 0
parport 46562 3 ppdev,parport_pc,lp
usbhid 47199 0
hid 99559 1 usbhid
radeon 804372 3
ttm 76949 1 radeon
drm_kms_helper 46978 1 radeon
drm 242038 5 radeon,ttm,drm_kms_helper
i2c_algo_bit 13423 1 radeon
sata_nv 32286 0
forcedeth 63460 0
pata_amd 14118 2
Code:
xxxxx@asdf:~$ lsmod | grep "ath"
ath9k 132390 0
mac80211 506816 1 ath9k
ath9k_common 14053 1 ath9k
ath9k_hw 411112 2 ath9k,ath9k_common
ath 24067 3 ath9k,ath9k_common,ath9k_hw
cfg80211 205544 3 ath9k,mac80211,ath
5) Kernel boot messages
Code:
alfred@asdf:~$ dmesg | grep "ath"
[ 16.213970] ath9k 0000:01:08.0: PCI INT A -> Link[LNKA] -> GSI 18 (level, low) -> IRQ 18
[ 16.517723] ath: EEPROM regdomain: 0x809c
[ 16.517727] ath: EEPROM indicates we should expect a country code
[ 16.517728] ath: doing EEPROM country->regdmn map search
[ 16.517729] ath: country maps to regdmn code: 0x52
[ 16.517731] ath: Country alpha2 being used: CN
[ 16.517732] ath: Regpair used: 0x52
[ 16.524064] ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
[ 16.524534] Registered led device: ath9k-phy0
[ 16.585557] type=1400 audit(1335479733.136:11): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=943 comm="apparmor_parser"
[ 40.175779] type=1400 audit(1335479756.724:24): apparmor="DENIED" operation="open" parent=1 profile="/usr/lib/telepathy/mission-control-5" name="/usr/share/gvfs/remote-volume-monitors/" pid=2010 comm="mission-control" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
When I did just dmesg as suggested, there were loads of lines. I couldn't even select them properly to copy. So instead, I decided to get msg only related to "ath".
If you do need all of them, let me know how to output them into a text file from terminal. It'd be easier for me that way.
6) Network configuration
Code:
xxxxx@asdf:~$ sudo lshw -C network
*-network
description: Wireless interface
product: AR9227 Wireless Network Adapter
vendor: Atheros Communications Inc.
physical id: 8
bus info: pci@0000:01:08.0
logical name: wlan0
version: 01
serial: f4:ec:38:db:dd:55
width: 32 bits
clock: 66MHz
capabilities: pm bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.2.0-23-generic firmware=N/A latency=168 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 memory:fbef0000-fbefffff
7) Scan for networks:
Code:
xxxxx@asdf:~$ iwlist scan
lo Interface doesn't support scanning.
wlan0 No scan results
eth0 Interface doesn't support scanning.
Eight) Ubuntu Version:
Code:
xxxxx@asdf:~$ lsb_release -d
Description: Ubuntu 12.04 LTS
9) Kernel/architecture (including 32 vs. 64 bit):
Code:
xxxxx@asdf:~$ uname -mr
3.2.0-23-generic x86_64
10) Restarting the network:
Code:
xxxxx@asdf:~$ sudo /etc/init.d/networking restart
* Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces
* Reconfiguring network interfaces...
Advice, suggestion and discussion are welcome. This is a fairly powerful machine (at least imho) and I am quite anxious to run Ubuntu on it. So, please help :)
Should you require any further info, do let me know.
Thank you very much. Best regards.
Re: AR9227 causes Ubuntu 12.04 to freeze
I understand the forums are pretty busy with Pangolin release and receiving high number of bug reports, etc. That is why I waited for more than 24 hours to get a reply.
There hasn't been any reply so I'm wondering if there is still no solution for this.
The Kernel version jumped to 3.2 and I thought that was going to fix the problem but it didn't. Still maybe there is something I can do to resolve this without getting a new wireless card (as it works amazingly well on Windows).
The problem with AR9227 was since 10.04 so two years ago.
I vaguely understand that this has more to do with the manufacturer not providing support for Linux. The Kernel did and does have a module "ath9k" which supposedly works with all these chipsets but apparently is problematic. That is as far as I understand. My knowledge with dev matters are very limited.
I tried nohwencrypt=1 but didn't work. The moment there's network traffic, the PC freezes.
Please, help me resolve this problem once and for all. Or at least, let me know more about it so I know what to keep an eye on in the future.
Thank you very much. Best regards.
Re: AR9227 causes Ubuntu 12.04 to freeze
Please show the outputs of:
Code:
iwlist chan
sudo iwlist scan
Country code for China (CN)?! Try
Code:
sudo apt-get install iw
iw reg get
sudo iw reg set UK
iw reg get
sudo /etc/init.d/networking restart
Re: AR9227 causes Ubuntu 12.04 to freeze
Quote:
Originally Posted by
praseodym
Please show the outputs of:
Code:
iwlist chan
sudo iwlist scan
Country code for China (CN)?! Try
Code:
sudo apt-get install iw
iw reg get
sudo iw reg set UK
iw reg get
sudo /etc/init.d/networking restart
I did as you said, mate, and followings are the results.
Code:
xxxxx@asdf:~$ iwlist chan
lo no frequency information.
wlan0 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
eth0 no frequency information.
Code:
xxxxx@asdf:~$ sudo iwlist scan
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 06:21:04:9B:95:DA
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=26/70 Signal level=-84 dBm
Encryption key:off
ESSID:"BTOpenzone-H"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000116ccea8168
Extra: Last beacon: 780ms ago
IE: Unknown: 000C42544F70656E7A6F6E652D48
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101880003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A4C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001900000000000000000000000000000000000000
IE: Unknown: DD0900037F01010020FF7F
IE: Unknown: DD0A00037F04010000000000
Cell 02 - Address: 00:26:91:35:58:12
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=28/70 Signal level=-82 dBm
Encryption key:on
ESSID:"SKY22545"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000092246525008
Extra: Last beacon: 820ms ago
IE: Unknown: 0008534B593232353435
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 0505000100FC05
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: Unknown: 32040C121860
IE: Unknown: DD090010180209F4000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 03 - Address: 00:26:44:EF:AA:BD
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=63/70 Signal level=-47 dBm
Encryption key:on
ESSID:"O2wi-fi_ALDI"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000004d628c321a7
Extra: Last beacon: 716ms ago
IE: Unknown: 000C4F3277692D66695F414C4449
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A0C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001700000000000000000000000000000000000000
IE: Unknown: DD09001018020300050000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101080003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C330C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401001700000000000000000000000000000000000000
Cell 04 - Address: E8:39:DF:FF:80:6F
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=52/70 Signal level=-58 dBm
Encryption key:on
ESSID:"TALKTALK-FF806D"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000002f363ca21
Extra: Last beacon: 548ms ago
IE: Unknown: 000F54414C4B54414C4B2D464638303644
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A0E101EFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601050000000000000000000000000000000000000000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD9C0050F204104A0001101044000102103B000103104700106304125310192006122800E04C8670011021001B5265616C74656B2053656D69636F6E647563746F7220436F72702E1023000752544C383637311024000D45562D323030362D30372D32371042000F3132333435363738393031323334371054000800060050F2040001101100114144534C204D6F64656D2F526F75746572100800020082
IE: Unknown: DD1E00904C330E101EFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401050000000000000000000000000000000000000000
IE: Unknown: DD0600E04C020120
Cell 05 - Address: 74:44:01:6A:BB:85
Channel:7
Frequency:2.442 GHz (Channel 7)
Quality=42/70 Signal level=-68 dBm
Encryption key:on
ESSID:"IKEA.Southampton44152"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000cb0b7f9f6f
Extra: Last beacon: 396ms ago
IE: Unknown: 0015494B45412E536F757468616D70746F6E3434313532
IE: Unknown: 010882848B962430486C
IE: Unknown: 030107
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A7C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1607080400000000000000000000000000000000000000
IE: Unknown: DD6F0050F204104A0001101044000102103B000103104700104D73C5C27E6B5243D6440AAB1719670B102100074E657467656172102300074E6574676561721024000631323334353610420007303030303030311054000800060050F20400011011000743473331303144100800020088
IE: Unknown: DD090010180202F0050000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C337C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C3407080400000000000000000000000000000000000000
Cell 06 - Address: E0:CA:94:06:07:A0
Channel:10
Frequency:2.457 GHz (Channel 10)
Quality=31/70 Signal level=-79 dBm
Encryption key:on
ESSID:"O2wireless068000"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000005db871c4dc
Extra: Last beacon: 284ms ago
IE: Unknown: 00104F32776972656C657373303638303030
IE: Unknown: 010882848B961224486C
IE: Unknown: 03010A
IE: Unknown: 2A0100
IE: Unknown: 32040C183060
IE: Unknown: 2D1A0C0103FF000000000000000000000000000000000C0000000000
IE: Unknown: 3D160A000700000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: 0B0503000B127A
IE: Unknown: 7F0101
IE: Unknown: DD07000C4304000000
IE: Unknown: 0706474220010D10
IE: Unknown: DD1E00904C330C0103FF000000000000000000000000000000000C0000000000
IE: Unknown: DD1A00904C340A000700000000000000000000000000000000000000
Cell 07 - Address: 00:01:E3:EF:4C:E4
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=31/70 Signal level=-79 dBm
Encryption key:on
ESSID:"OrangeEF4CE2"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000002653b1ef
Extra: Last beacon: 236ms ago
IE: Unknown: 000C4F72616E6765454634434532
IE: Unknown: 010582848B962C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Preauthentication Supported
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Cell 08 - Address: 90:01:3B:1A:A3:7D
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=29/70 Signal level=-81 dBm
Encryption key:on
ESSID:"SKYAA37C"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000069885c0c
Extra: Last beacon: 788ms ago
IE: Unknown: 0008534B594141333743
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001500000000000000000000000000000000000000
IE: Unknown: DD7B0050F204104A00011010440001021041000100103B00010310470010BF34E8F4BCCD795C60175268405D9B841021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D4150100800020084103C000101
IE: Unknown: DD090010180201F0040000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 09 - Address: 00:21:04:9B:95:DA
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=28/70 Signal level=-82 dBm
Encryption key:on
ESSID:"BTHomeHub2-7RZK"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000116cceb3fc2
Extra: Last beacon: 780ms ago
IE: Unknown: 000F4254486F6D65487562322D37525A4B
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101880003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A4C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001900000000000000000000000000000000000000
IE: Unknown: DD0900037F01010020FF7F
IE: Unknown: DD0A00037F04010000000000
Cell 10 - Address: 0A:21:04:9B:95:DA
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=28/70 Signal level=-82 dBm
Encryption key:off
ESSID:"BTFON"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000116cceaed22
Extra: Last beacon: 776ms ago
IE: Unknown: 00054254464F4E
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101880003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A4C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601001900000000000000000000000000000000000000
IE: Unknown: DD0900037F01010020FF7F
IE: Unknown: DD0A00037F04010000000000
Cell 11 - Address: E8:BE:81:67:27:C7
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=32/70 Signal level=-78 dBm
Encryption key:on
ESSID:"SKY10182"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000827dc26a009
Extra: Last beacon: 556ms ago
IE: Unknown: 0008534B593130313832
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: DD090010180201F4000000
eth0 Interface doesn't support scanning.
Code:
xxxxx@asdf:~$ sudo apt-get install iw
Reading package lists... Done
Building dependency tree
Reading state information... Done
iw is already the newest version.
iw set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
xxxxx@asdf:~$ iw reg get
country CN:
(2402 - 2482 @ 40), (N/A, 20)
(5735 - 5835 @ 40), (N/A, 30)
xxxxx@asdf:~$ sudo iw reg set UK
xxxxx@asdf:~$ iw reg get
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 20), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
xxxxx@asdf:~$ sudo /etc/init.d/networking restart
* Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces
* Reconfiguring network interfaces... [ OK ]
After changing the country code to UK, I connected to the wifi just to see if there would be any improvements, but no; the PC froze. I rebooted to try again, same result.
Btw, my home network's name is O2wi-fi_ALDI.
Let me know if you find anything interesting from those results.
Thank you very much.
Re: AR9227 causes Ubuntu 12.04 to freeze
Change the encryption to WPA2-AES (CCMP) instead of mixed WPA/WPA2 and the channel to fixed 7 or 13, there is too much traffic on channel 1. Router firmware is up-to-date?
Re: AR9227 causes Ubuntu 12.04 to freeze
Quote:
Originally Posted by
praseodym
Change the encryption to WPA2-AES (CCMP) instead of mixed WPA/WPA2 and the channel to fixed 7 or 13, there is too much traffic on channel 1. Router firmware is up-to-date?
I don't know much about network security encryption and have always used WPA/WPA2.
As for the channels, I've never touched them. They've always worked great on Windows. I use Ubuntu on my laptop and it has never had a problem with my home connection either. (Btw, my laptop's wireless card is built-in and not ath9k.)
If I edit these details, wouldn't that affect the security and quality of the connection?
Anyway, the encryption types available on the router are WEP and WPA-PSK.
Atm WPA-PSK is chosen.
In WPA-PSK version, there are WPA, WPA2 and WPA+WPA2.
I've selected WPA2 but there is no WPA2-AES.
I've also changed the channels to manual and selected 13.
The router's drivers probably aren't updated cause I've never fiddled with them. It's a default Thomson router from O2. I don't know how to update it either. Tbh, I don't want to play around with it. If something breaks, I'll have to call them and pay for it. Not to mention the period without the Internet.
Other that that, as mentioned above, I've edited my home connection.
Anyway, so I tried again but still the same problem. Things are working just fine until I use the Internet...be that checking for software updates or firing up the Firefox, it just freezes outright. Thus, nothing changes there.
Re: AR9227 causes Ubuntu 12.04 to freeze
Do we have a solution for this issue in the meantime?
I also have the exact same WiFi card (TP-Link TL-WN851ND) and also experiencing the same issue. Connecting through LAN is working well, the crash only happens when I'm on wifi.
Re: AR9227 causes Ubuntu 12.04 to freeze
Quote:
Originally Posted by
IwakiPingu
Do we have a solution for this issue in the meantime?
I also have the exact same WiFi card (TP-Link TL-WN851ND) and also experiencing the same issue. Connecting through LAN is working well, the crash only happens when I'm on wifi.
There doesn't seem to be ANY solution whatsoever. Imo, there never was.
I have tried other distros such as Fedora, openSUSE and Debian; and they all had same problem with this wireless card. I remember posting this on Fedora forums last year (I think) but after a while, we just reached to a conclusion that this can't be solved.
Kind of a shame though, isn't it? I don't know about you but I was hoping to finally use Ubuntu on my desktop (cause 12.04 has got newer kernel and all) :|
Re: AR9227 causes Ubuntu 12.04 to freeze
ah shucks!
Actually I'm running ubuntu as the only OS, I kinda have no choice since my work really needs me to run linux (embedded dev). Besides one of these days gaming is not really an option either, so I don't really have any use of Windows anymore.
Now I gotta keep annoying the wifey with my 20m LAN cable and potentially tripping any unsuspecting visitor :lolflag:
Thanks for the quick reply!
Quote:
Originally Posted by
Godspell
There doesn't seem to be ANY solution whatsoever. Imo, there never was.
I have tried other distros such as Fedora, openSUSE and Debian; and they all had same problem with this wireless card. I remember posting this on Fedora forums last year (I think) but after a while, we just reached to a conclusion that this can't be solved.
Kind of a shame though, isn't it? I don't know about you but I was hoping to finally use Ubuntu on my desktop (cause 12.04 has got newer kernel and all) :|
Re: AR9227 causes Ubuntu 12.04 to freeze
Quote:
Originally Posted by
IwakiPingu
ah shucks!
Actually I'm running ubuntu as the only OS, I kinda have no choice since my work really needs me to run linux (embedded dev). Besides one of these days gaming is not really an option either, so I don't really have any use of Windows anymore.
Now I gotta keep annoying the wifey with my 20m LAN cable and potentially tripping any unsuspecting visitor :lolflag:
Thanks for the quick reply!
No worries, wish I was more helpful.
Great to know Ubuntu still works with cable connection and wouln't crash until wireless is used. Had never tested it myself.
Jesus Christ! Holy Mother of God! Don't mind my geekgasm LOL
You're an embedded software developer who HAS to use Linux at work!? In other words, you're an IT professional who uses Linux for like what...6, 7 hours a day in and out every weekday.
WOW and DAMN, what I wouldn't give to get a job like that heh. It's like a holy grail of IT jobs.
I'm a University student and half of the guys in my class don't have any clue how to fix a PC or write a program.....or are even interested in to find out 'how things work'. The other half are too busy reading HCI theories and SDLC methodologies lol. On top of that, all of them don't seem to know the existence of Linux :|
So you can probably imagine where my excitement comes from lol Amongst all of those bloody academics, I'm like an outcast.
Anyway, sorry for an unrelated-rant-outbreak.
Btw, if you have a 20M cable, you can probably wire it overhead. You can use the wall sticker clippers to manage it. That way it's a little more permanent. Besides, you don't wanna get your missus tripped over and booted to the couch, do you lol
Best regards.