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#1 2012-01-28 16:33:50

seniorsassycat
Member
Registered: 2011-08-27
Posts: 76

[Solved]All wireless networks have stopped working

Connecting to wireless networks that i have previously connected to times out, both with network manager, and iwconfig.

I have tried on two networks i have previously connected to and both time out.

What is interesting is that i am able to connect if i set a static ip, but i cannot reach any addresses, not even 192.168.1.1

SOLVED:
Issue was determined to be the ath9k module, fixed it by running:

modprobe ath9k nohwcrypt=1

Last edited by seniorsassycat (2012-01-28 23:14:25)

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#2 2012-01-28 17:12:15

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,791

Re: [Solved]All wireless networks have stopped working

please post the output of
ip addr
iwconfig
and
iwlist scan

Thanks.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#3 2012-01-28 18:02:04

seniorsassycat
Member
Registered: 2011-08-27
Posts: 76

Re: [Solved]All wireless networks have stopped working

I had some other issues, so I'm doing a full system reinstall.

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#4 2012-01-28 18:05:50

alfonsodg
Member
Registered: 2010-08-26
Posts: 18

Re: [Solved]All wireless networks have stopped working

Hi,

Same here! I will deep into the logs for a detailed explanation, but is hard to be in the "net" without network.

Some news from anyone?

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#5 2012-01-28 18:14:41

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,791

Re: [Solved]All wireless networks have stopped working

alfonsodg wrote:

...Some news from anyone?

Same questions.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#6 2012-01-28 18:35:34

alfonsodg
Member
Registered: 2010-08-26
Posts: 18

Re: [Solved]All wireless networks have stopped working

Some news:

Networks without security works, right  now i am using my tethering features for my Android phone.

I am already checking for last packages, un til now: uninstall usb_modeswitch no offers a solution (was one of the last packages with network relation), looking for more

ip addr


1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN qlen 1000
    link/ether 1c:75:08:21:dd:4d brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 1c:65:9d:69:fa:c1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.43.218/24 brd 192.168.43.255 scope global wlan0
    inet6 fe80::1e65:9dff:fe69:fac1/64 scope link
       valid_lft forever preferred_lft forever

iwconfig

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"AndroidAP" 
          Mode:Managed  Frequency:2.412 GHz  Access Point: E0:2A:82:E6:29:06   
          Bit Rate=54 Mb/s   Tx-Power=13 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=62/70  Signal level=-48 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:27  Invalid misc:325   Missed beacon:0

eth0      no wireless extensions.

iwlist scan

lo        Interface doesn't support scanning.
                                             
wlan0     Scan completed :                   
          Cell 01 - Address: 00:25:86:C5:15:B
                    Channel:6               
                    Frequency:2.437 GHz (Chan
                    Quality=50/70  Signal lev
                    Encryption key:on       
                    ESSID:"4714046"         
                    Bit Rates:1 Mb/s; 2 Mb/s;
                              12 Mb/s; 24 Mb/
                    Bit Rates:9 Mb/s; 18 Mb/s
                    Mode:Master             
                    Extra:tsf=00000000ae9f498
                    Extra: Last beacon: 400ms
                    IE: Unknown: 000734373134
                    IE: Unknown: 010882848B96
                    IE: Unknown: 030106     
                    IE: Unknown: 2A0104     
                    IE: Unknown: 32041224606C
          Cell 02 - Address: 00:25:12:F5:64:F
                    Channel:6               
                    Frequency:2.437 GHz (Chan
                    Quality=51/70  Signal lev
                    Encryption key:on       
                    ESSID:"4714046"         
                    Bit Rates:1 Mb/s; 2 Mb/s;
                              9 Mb/s; 12 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/
                    Mode:Master             
                    Extra:tsf=00000037ef592b7
                    Extra: Last beacon: 1036m
                    IE: Unknown: 000734373134
                    IE: Unknown: 010882848B96
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: DD950050F204104A0001101044000102103B0001031047001063041253101920061228002512F564FD1021001B5265616C74656B2053656D69636F6E647563746F7220436F72702E1023000752544C383637311024000D45562D323030362D30372D32371042000F3132333435363738393031323334371054000800060050F20400011011000A5A585631302057333030100800020086
          Cell 03 - Address: E0:2A:82:E6:29:06
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=63/70  Signal level=-47 dBm 
                    Encryption key:off
                    ESSID:"AndroidAP"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 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=0000000035539181
                    Extra: Last beacon: 1673ms ago
                    IE: Unknown: 0009416E64726F69644150
                    IE: Unknown: 010882848B0C12961824
                    IE: Unknown: 030101
                    IE: Unknown: 0706555320010B1B
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C

eth0      Interface doesn't support scanning.

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#7 2012-01-28 20:28:07

Fragasaurus
Member
From: Ottawa
Registered: 2010-05-20
Posts: 25

Re: [Solved]All wireless networks have stopped working

Simmilar problem here.

As of yesterday evening, I have been unable to reach the Internet through wifi via the very same access points that worked flawlessly a day before.

Wicd reports that I am, in fact, connected to the AP, but when I ping the router, I get:

PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
From 192.168.0.199 icmp_seq=2 Destination Host Unreachable
From 192.168.0.199 icmp_seq=3 Destination Host Unreachable
From 192.168.0.199 icmp_seq=4 Destination Host Unreachable

At first I thought this was a default gateway issue, but typing route results in:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.0.1     0.0.0.0         UG    302    0        0 wlan0
192.168.0.0     *               255.255.255.0   U     302    0        0 wlan0

which I think is normal.

My girlfriend's netbook, also running Arch, though not as up to date, connects flawleslly.
Could it be some update in the past few days that has caused this?

Any ideas?


EDIT: I should also point out that wired works fine, plugged into the same router, which is what I'm using to post this.

Last edited by Fragasaurus (2012-01-28 20:34:07)

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#8 2012-01-28 22:22:44

seniorsassycat
Member
Registered: 2011-08-27
Posts: 76

Re: [Solved]All wireless networks have stopped working

So i just did a completely fresh install, the only package besides base i installed was wireless_tools and dhcpd times out when broadcasting for a lease.
Everything works fine on wired connetion, it's just wireless that has issues.
ip addr

 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 48:5b:39:80:e1:08 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 74:f0:6d:0d:7e:97 brd ff:ff:ff:ff:ff:ff

iwconfig

wlan0     IEEE 802.11bgn  ESSID:"FBQ30"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1F:90:E2:91:14   
          Bit Rate=54 Mb/s   Tx-Power=14 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:on
          Link Quality=49/70  Signal level=-61 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:694   Missed beacon:0

iwlist scan

wlan0     Scan completed :
          Cell 01 - Address: 00:1F:90:E2:91:14
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"FBQ30"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 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=0000009bbd6b871b
                    Extra: Last beacon: 1033ms ago
                    IE: Unknown: 00054642513330
                    IE: Unknown: 010882848B0C12961824
                    IE: Unknown: 030101
                    IE: Unknown: 0706555320010B1B
                    IE: Unknown: 200100
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
          Cell 02 - Address: 00:23:69:55:07:E4
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=22/70  Signal level=-88 dBm  
                    Encryption key:on
                    ESSID:"linksys"
                    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=000000f2e50ae183
                    Extra: Last beacon: 773ms ago
                    IE: Unknown: 00076C696E6B737973
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 050400010000
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: DD0E0050F204104A0001101044000102
                    IE: Unknown: DD090010180203F4000000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK

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#9 2012-01-28 22:28:38

Gusar
Member
Registered: 2009-08-25
Posts: 3,605

Re: [Solved]All wireless networks have stopped working

@seniorsassycat: Which network are you trying to connect to, FBQ30 or linksys? linksys is WPA encrypted, wireless_tools won't do for that, you need to use wpa_supplicant.

Also, all of you haven't provided to possibly most important info: which wireless card (output of lspci -nn)?

Last edited by Gusar (2012-01-28 22:28:55)

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#10 2012-01-28 22:30:45

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,791

Re: [Solved]All wireless networks have stopped working

I think you guys are chasing different problems here.  Once we prove that, I'll suggest one of you start a different thread.
alfonsodg:  Your network seems to be working okay.  How are you trying to connect to the protected APs?  I cannot tell if they are WEP or WPA.  Do you know?  Are the routers under your control?

Fragasaurus:  What are the output of ip addr and of ip route ? Are you trying to use wired and wireless to the same router simultaneously?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#11 2012-01-28 22:42:09

alfonsodg
Member
Registered: 2010-08-26
Posts: 18

Re: [Solved]All wireless networks have stopped working

ewaller wrote:

I think you guys are chasing different problems here.  Once we prove that, I'll suggest one of you start a different thread.
alfonsodg:  Your network seems to be working okay.  How are you trying to connect to the protected APs?  I cannot tell if they are WEP or WPA.  Do you know?  Are the routers under your control?

Hi, My network works fine because AndroidAP has not security, meanwhile 4714046 has WEP .  The problem was after an update (about 30 hours ago and in the morning today) and reboot.

Currently i am using Ubuntu Linux in the same laptop for surf, is not a configuration issue seems a kernel or package failure.

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#12 2012-01-28 22:49:05

seniorsassycat
Member
Registered: 2011-08-27
Posts: 76

Re: [Solved]All wireless networks have stopped working

Gusar wrote:

@seniorsassycat: Which network are you trying to connect to, FBQ30 or linksys? linksys is WPA encrypted, wireless_tools won't do for that, you need to use wpa_supplicant.

Also, all of you haven't provided to possibly most important info: which wireless card (output of lspci -nn)?

I'm connecting to FBQ30, I was able to connect to it in the install environment, and in my old install without adding any extra drivers.
lspci -nn | grep Network

02:00.0 Network controller [0280]: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)

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#13 2012-01-28 22:52:29

Gusar
Member
Registered: 2009-08-25
Posts: 3,605

Re: [Solved]All wireless networks have stopped working

Hmm, I've seen more than one report with ath9k not working with kernel 3.2. You could try loading the module with disabled hardware encryption. Check with "modinfo ath9k" to see which option disables it.

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#14 2012-01-28 22:59:54

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,791

Re: [Solved]All wireless networks have stopped working

alfonsodg wrote:

...Hi, My network works fine because AndroidAP has not security, meanwhile 4714046 has WEP .  The problem was after an update

Got it.  What method are you using to set the WEP password?  The network daemon ? Wicd? NetworkManager? Did you roll your own? Do you do it by hand?
Are you using a hex key, or are you using a pass phrase ?
How do you get a network address?  Is it DHCP? If so, is it dhcpcd or dhclient?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#15 2012-01-28 23:01:16

seniorsassycat
Member
Registered: 2011-08-27
Posts: 76

Re: [Solved]All wireless networks have stopped working

fixed it by running

# modprobe ath9k nohwcrypt=1

Will this need to be ran at every boot? Is there a way to make it permanent, and is there a way to check if this option is set? Getting wireless to work has been difficult because sometimes running the command doesnt seem to be enough, first i have to run modprobe ath9k -r to remove the module, then modprobe ath9k nohwcrypt=1

Last edited by seniorsassycat (2012-01-29 03:20:27)

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#16 2012-01-28 23:26:14

Glinx
Member
Registered: 2010-10-12
Posts: 34

Re: [Solved]All wireless networks have stopped working

Just to add my 2cents..
Kernel update broke my wlan0 (ath9k pci). eth0 still worked. iwconfig wouldnt associate with the network. Downgraded to linux-3.2.1-1 again.

how to downgrade at https://wiki.archlinux.org/index.php/Kernel_Panics

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#17 2012-01-29 04:14:17

bkadoctaj
Member
Registered: 2010-05-02
Posts: 52

Re: [Solved]All wireless networks have stopped working

seniorsassycat wrote:

fixed it by running

# modprobe ath9k nohwcrypt=1

Will this need to be ran at every boot? Is there a way to make it permanent, and is there a way to check if this option is set? Getting wireless to work has been difficult because sometimes running the command doesnt seem to be enough, first i have to run modprobe ath9k -r to remove the module, then modprobe ath9k nohwcrypt=1

I believe at the end of your "kernel" line in your grub config file for your Arch Linux entry you can add "ath9k.nohwcrypt=1".  It would be similar to this:
https://wiki.archlinux.org/index.php/Ke … and_line_2

So following that link you'd replace "modprobe.blacklist=pcspkr,ipv6" as in the Wiki's example with "ath9k.nohwcrypt=1".  smile

Even though Glinx's solution worked for me, perhaps yours would have worked as well.

Glinx wrote:

Just to add my 2cents..
Kernel update broke my wlan0 (ath9k pci). eth0 still worked. iwconfig wouldnt associate with the network. Downgraded to linux-3.2.1-1 again.

how to downgrade at https://wiki.archlinux.org/index.php/Kernel_Panics

I had the same issue and your solution worked.  smile  Awesome, thanks.

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#18 2012-01-29 04:47:01

fossa.glenoid
Member
Registered: 2011-10-29
Posts: 15

Re: [Solved]All wireless networks have stopped working

I did what bkadoctaj said

I believe at the end of your "kernel" line in your grub config file for your Arch Linux entry you can add "ath9k.nohwcrypt=1".

¡¡¡And worked!!! Thanks

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#19 2012-01-29 09:13:34

maltem
Member
Registered: 2012-01-29
Posts: 1

Re: [Solved]All wireless networks have stopped working

Thanks for editing the OP to mention the workaround, that made it easy for me.

As for setting module options permanently, I would usually do it via modprobe.conf:

#
# /etc/modprobe.d/modprobe.conf
#

options ath9k nohwcrypt=1

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#20 2012-01-29 16:47:20

bkadoctaj
Member
Registered: 2010-05-02
Posts: 52

Re: [Solved]All wireless networks have stopped working

maltem wrote:

Thanks for editing the OP to mention the workaround, that made it easy for me.

As for setting module options permanently, I would usually do it via modprobe.conf:

#
# /etc/modprobe.d/modprobe.conf
#

options ath9k nohwcrypt=1

Hmm, at first when I read your post I thought that this method would still be inferior to setting the kernel option as a boot parameter, but then I read in the Wiki that if you disable a module via modprobe.conf or some other .conf file in the /etc/modprobe.d/ directory it is possible later to manually load the module if necessary... does the same logic apply to individual kernel option settings for modules? 

By the same token, is it impossible to manually change module options post-boot if the settings are made in the boot config file instead?  If so, I would say the method you recommended is superior.  smile

Last edited by bkadoctaj (2012-01-29 16:49:31)

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#21 2012-01-29 19:19:47

Fragasaurus
Member
From: Ottawa
Registered: 2010-05-20
Posts: 25

Re: [Solved]All wireless networks have stopped working

This solution has worked for me, despite chasing a seemingly different problem.  Thanks.

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#22 2012-01-30 09:39:15

skunkos
Member
From: Czech Republic
Registered: 2011-06-20
Posts: 46
Website

Re: [Solved]All wireless networks have stopped working

Same problem here guys. All wifi interfaces (ath9k) stopped working. I connect to my AP (my router in my house/WEP), everything goes fine, networkmanager gives me notice that i am connected.

But i can't even ping my gateway/ap/router.
I tried that modprobe ath9k nohwcrypt=1, and then i can ping ap, but can't ping behind it (there are two hops to the internet). So the only node i can ping with that workaround is my ap/router/gateway.

Any ideas? Should i create own topic? (it seems to be the same issue)

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#23 2012-01-30 10:23:51

Jankosevic
Member
Registered: 2008-07-06
Posts: 82

Re: [Solved]All wireless networks have stopped working

The above posted solution works also fine for me. Now I can finally get an IP address again wink

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#24 2012-01-30 14:29:30

alphazo
Member
Registered: 2009-10-20
Posts: 163

Re: [Solved]All wireless networks have stopped working

This forum saved my day. I was about to remove my ath9k and put the crappy intel one back.

I noticed a very strange thing. I'm logging all my system updates. On Friday I did the update to Linux 3.2.2 and then shutdown. On Sunday I rebooted and was connected to my home AP without any problem. Updated few KDE related packages. Back to the office on Monday... no WiFi!

Anyway it works now... Thanks a lot!

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#25 2012-01-30 18:02:11

bkadoctaj
Member
Registered: 2010-05-02
Posts: 52

Re: [Solved]All wireless networks have stopped working

skunkos wrote:

Same problem here guys. All wifi interfaces (ath9k) stopped working. I connect to my AP (my router in my house/WEP), everything goes fine, networkmanager gives me notice that i am connected.

But i can't even ping my gateway/ap/router.
I tried that modprobe ath9k nohwcrypt=1, and then i can ping ap, but can't ping behind it (there are two hops to the internet). So the only node i can ping with that workaround is my ap/router/gateway.

Any ideas? Should i create own topic? (it seems to be the same issue)

Downgrade your kernel if it was working before...  I'm guessing that this change happened after you did a kernel upgrade, right?

# cd /var/cache/pacman/pkg/
# pacman -U linux-previous-vers.pkg.tar.gz
# pacman -U linux-headers-previous-vers.pkg.tar.gz
# reboot

Last edited by bkadoctaj (2012-01-30 18:05:01)

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