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  #1  
Old 9th August 2011, 12:55 PM
lugkhast Offline
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linuxchrome
Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

My wireless card is:
Code:
03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [8086:0083]
On Fedora 15, when I boot kernel 2.6.40, my laptop is unable to connect to my wireless-G AP. dmesg shows the following:

Code:
[   43.866090] wlan0: direct probe to 00:27:19:14:c2:ca (try 1/3)
[   44.065631] wlan0: direct probe to 00:27:19:14:c2:ca (try 2/3)
[   44.265486] wlan0: direct probe to 00:27:19:14:c2:ca (try 3/3)
[   44.465369] wlan0: direct probe to 00:27:19:14:c2:ca timed out
[   46.465202] iwlagn 0000:03:00.0: fail to flush all tx fifo queues
[   52.156115] wlan0: direct probe to 00:27:19:14:c2:ca (try 1/3)
[   52.356077] wlan0: direct probe to 00:27:19:14:c2:ca (try 2/3)
[   52.556005] wlan0: direct probe to 00:27:19:14:c2:ca (try 3/3)
[   52.755885] wlan0: direct probe to 00:27:19:14:c2:ca timed out
[   54.756854] iwlagn 0000:03:00.0: fail to flush all tx fifo queues
It works fine, however, when I boot using kernel 2.6.38 (from which I am posting) and in Windows. Also, I found some emails from the linux-wireless mailing list which appear to be talking about the same problem.

The system is fully updated. I've tried the 11n_disable=1 hint I came across on the ThinkPad wiki, but it didn't help. (I'm on an Asus K42Ja, in case it's relevant)

Although I'm fine with staying at 2.6.38 for now, are there workarounds/fixes for this?

Last edited by lugkhast; 9th August 2011 at 01:05 PM. Reason: Forgot to specify distro version, added details
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  #2  
Old 18th August 2011, 09:38 AM
geuzz Offline
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linuxfirefox
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

Exactly the same for me ...
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  #3  
Old 18th August 2011, 07:36 PM
finite9 Offline
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linuxfirefox
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

same for me as well with same chipset.

---------- Post added at 08:36 PM ---------- Previous post was at 08:23 PM ----------

... However, in my case it was because I had previously been using the fix for Wireless N Intel chipsets...

/etc/modprobe.d/iwlagn.conf

options iwlagn 11n_disable50=1 11n_disable=1

Once I disabled this line, and rebooted, then wireless started working again. I still have issues with wireless N speeds, but at least wireless is working again.
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  #4  
Old 25th August 2011, 01:58 AM
shouzhou Offline
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linuxfirefox
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

my thinkpad E520 has same problem! I don't know what to do!

---------- Post added at 08:57 AM ---------- Previous post was at 08:49 AM ----------

mycondition:
lspci
00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Device 0116 (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 3 (rev b4)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b4)
00:1c.7 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 8 (rev b4)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 04)
01:00.0 VGA compatible controller: ATI Technologies Inc Device 6741
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
04:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 04)
09:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000

---------- Post added at 08:58 AM ---------- Previous post was at 08:57 AM ----------

dmesg | grep iwlagn
[ 14.564993] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:d
[ 14.564997] iwlagn: Copyright(c) 2003-2011 Intel Corporation
[ 14.565099] iwlagn 0000:09:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 14.565140] iwlagn 0000:09:00.0: setting latency timer to 64
[ 14.565212] iwlagn 0000:09:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[ 14.588471] iwlagn 0000:09:00.0: device EEPROM VER=0x15d, CALIB=0x6
[ 14.588475] iwlagn 0000:09:00.0: Device SKU: 0X9
[ 14.588478] iwlagn 0000:09:00.0: Valid Tx ant: 0X1, Valid Rx ant: 0X3
[ 14.603618] iwlagn 0000:09:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels
[ 14.603772] iwlagn 0000:09:00.0: irq 45 for MSI/MSI-X
[ 15.581502] iwlagn 0000:09:00.0: loaded firmware version 39.31.5.1 build 35138
[ 23.908426] NetworkManager[868]: <info> (wlan0): new 802.11 WiFi device (driver: 'iwlagn' ifindex: 3)
anyone can help?
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  #5  
Old 28th August 2011, 08:46 AM
lugkhast Offline
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windows_7chrome
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

Quote:
Originally Posted by finite9 View Post
same for me as well with same chipset.

---------- Post added at 08:36 PM ---------- Previous post was at 08:23 PM ----------

... However, in my case it was because I had previously been using the fix for Wireless N Intel chipsets...

/etc/modprobe.d/iwlagn.conf

options iwlagn 11n_disable50=1 11n_disable=1

Once I disabled this line, and rebooted, then wireless started working again. I still have issues with wireless N speeds, but at least wireless is working again.
It appears that the "11n_disable50" option was removed in 2.6.40, causing the driver to fail to load, which resulted in the loss of wireless in your case. However, on my machine, the driver is successfully loaded, and can scan for APs, but is unable to connect to them, giving the errors in my original post.

I also tried the F16 alpha ISO - the same issue is present in the live session.

Any other ideas? It's still a good long while before my current laptop gets replaced by a ThinkPad
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  #6  
Old 28th August 2011, 09:15 AM
stevea Offline
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Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

If you google you'll see this a a problem from after 2.6.38 to at least 3.0.rc5
Looks like a driver bug, but you may have to up/downgrade kernels to get some joy.
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  #7  
Old 29th August 2011, 11:30 AM
shouzhou Offline
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linuxfirefox
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

finally ,i find the solution :
http://ubuntuforums.org/showthread.php?t=1761472
fedora forum .......
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  #8  
Old 2nd September 2011, 06:49 AM
lugkhast Offline
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windows_7chrome
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

Quote:
Originally Posted by shouzhou View Post
finally ,i find the solution :
http://ubuntuforums.org/showthread.php?t=1761472
fedora forum .......
It doesn't solve the problem - "rfkill list" doesn't show my wireless as hard or soft blocked. It's likely a driver bug as stevea has mentioned. I've subscribed to the linux-wireless mailing list and have been reading for related news as a result.
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  #9  
Old 31st October 2011, 10:54 PM
IHeart SymLinks Offline
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linuxfirefox
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

On my HP Pavillion DM4 I can connect to Wifi, but it's really slow and sometimes I have to reconnect. What's funny is sometimes Chrome works but Firefox doesn't which makes no sense since if there is TCP/IP connectivity they both should work.

lspci | grep -i net says:
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000

In Windows Device Manager it says:
Intel Wifi Link 1000 BGN
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Junior SysAdmin and Python Newbie
Fedora 15 64 Bit (Fedora 13 install upgraded to 14 with preupgrade, then 15 using --distro-sync)
KDE 4.6.5

Laptop: Fedora 13 upgraded to 15 via --distro-sync

Can someone pls help me with The wireless on my laptop?
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  #10  
Old 12th January 2012, 11:37 PM
roelj Offline
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Age: 22
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linuxopera
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

Quote:
Originally Posted by IHeart SymLinks View Post
On my HP Pavillion DM4 I can connect to Wifi, but it's really slow and sometimes I have to reconnect. What's funny is sometimes Chrome works but Firefox doesn't which makes no sense since if there is TCP/IP connectivity they both should work.

lspci | grep -i net says:
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000

In Windows Device Manager it says:
Intel Wifi Link 1000 BGN
Performance problems can be a lot. Install wireshark:
Code:
yum install wireshark wireshark-gnome
And see if packages are failing.

How's your signal strength?
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  #11  
Old 12th December 2012, 09:46 PM
marko Offline
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linuxfirefox
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

Quote:
Originally Posted by IHeart SymLinks View Post
What's funny is sometimes Chrome works but Firefox doesn't which makes no sense since if there is TCP/IP connectivity they both should work.
Try this:

http://forums.fedoraforum.org/showpo...26&postcount=6
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  #12  
Old 18th December 2012, 05:00 PM
IHeart SymLinks Offline
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linuxchrome
Re: Cannot connect to WiFi on 2.6.40 - Centrino Wireless-N 1000

I had to remove the hard drive from that machine that had my dualboot Windows 7/Fedora. The replacement drive only has Windows (I never bothered to install Fedora for this reason). Once I pull the data off the old drive I could try putting it back it and try.
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Junior SysAdmin and Python Newbie
Fedora 15 64 Bit (Fedora 13 install upgraded to 14 with preupgrade, then 15 using --distro-sync)
KDE 4.6.5

Laptop: Fedora 13 upgraded to 15 via --distro-sync

Can someone pls help me with The wireless on my laptop?
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