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wlan0 randomly disconnects

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mechtech
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wlan0 randomly disconnects

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Post by mechtech » Tue Oct 02, 2012 10:51 pm

Hi,

First off let me say, I'm new to gentoo but im loving it :D . But i seem to be having problems getting the wireless working on my old compaq presario 900 laptop. I'm using a PCMCIA Cardbus linksys wpc100 card because the laptop doesn't have built-in wireless. I've compiled ath9k into the kernel and installed wpa_supplicant and wireless-tools.

It connects but the problem I'm having is that after a short period of time (3-5 min) it will disconnect from my AP. I then have to iwconfig wlan0 essid "TheMatrix" (i need to change that :P ) to get it started again. It is continually doing this. I am using WPA2. Here is some info about it:

lspci -k output

Code: Select all

00:00.0 Host bridge: Advanced Micro Devices [AMD] nee ATI RS100 AGP Bridge [IGP 320M] (rev 13)
	Kernel driver in use: agpgart-ati
00:01.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI PCI Bridge [IGP 320M] (rev 01)
00:02.0 USB controller: ULi Electronics Inc. USB 1.1 Controller (rev 03)
	Subsystem: ULi Electronics Inc. ASRock 939Dual-SATA2 Motherboard
	Kernel driver in use: ohci_hcd
00:07.0 ISA bridge: ULi Electronics Inc. M1533/M1535/M1543 PCI to ISA Bridge [Aladdin IV/V/V+]
	Subsystem: ULi Electronics Inc. ALi M1533 Aladdin IV/V ISA Bridge
00:08.0 Multimedia audio controller: ULi Electronics Inc. M5451 PCI AC-Link Controller Audio Device (rev 02)
	Subsystem: Compaq Computer Corporation Device 00b0
	Kernel driver in use: snd_ali5451
00:0a.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 02)
	Subsystem: Compaq Computer Corporation Device 00b0
	Kernel driver in use: yenta_cardbus
00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 20)
	Subsystem: Compaq Computer Corporation Device 00b0
	Kernel driver in use: 8139cp
00:0c.0 Communication controller: Conexant Systems, Inc. HSF 56k HSFi Modem (rev 01)
	Subsystem: Compaq Computer Corporation Device 8d88
00:0f.0 USB controller: ULi Electronics Inc. USB 1.1 Controller (rev 03)
	Subsystem: ULi Electronics Inc. ASRock 939Dual-SATA2 Motherboard
	Kernel driver in use: ohci_hcd
00:10.0 IDE interface: ULi Electronics Inc. M5229 IDE (rev c4)
	Subsystem: ULi Electronics Inc. M5229 IDE
	Kernel driver in use: pata_ali
00:11.0 Bridge: ULi Electronics Inc. M7101 Power Management Controller [PMU]
	Subsystem: ULi Electronics Inc. M7101 Power Management Controller [PMU]
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS100 [Radeon IGP320M]
	Subsystem: Compaq Computer Corporation Device 00b0
	Kernel driver in use: radeonfb
02:00.0 Network controller: Atheros Communications Inc. AR5416 Wireless Network Adapter [AR5008 802.11(a)bgn] (rev 01)
	Subsystem: Linksys WPC100 v1 802.11n RangePlus Wireless Notebook Adapter
	Kernel driver in use: ath9k
Here is some dmesg output:
dmesg | grep ath9k

Code: Select all


[    3.928323] ath9k 0000:02:00.0: enabling device (0000 -> 0002)
[    4.365316] ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
[    4.366597] Registered led device: ath9k-phy0
dmesg | grep wlan0

Code: Select all

[  417.104817] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1138.086960] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[ 1138.110818] wlan0: authenticated
[ 1138.110908] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[ 1138.113316] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=5)
[ 1138.113323] wlan0: associated
[ 1138.113332] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[ 1138.113336] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[ 1138.113340] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[ 1138.113568] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1148.578035] wlan0: no IPv6 routers present
[ 1633.556162] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[ 1633.556170] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[ 1633.556174] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[ 2746.943432] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[ 2746.965883] wlan0: authenticated
[ 2746.965991] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[ 2746.968388] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=5)
[ 2746.968395] wlan0: associated
[ 2746.968405] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[ 2746.968408] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[ 2746.968413] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[ 3143.509533] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[ 3143.509540] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[ 3143.509545] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[ 4784.925410] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[ 4784.948497] wlan0: authenticated
[ 4784.948580] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[ 4784.952020] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=5)
[ 4784.952052] wlan0: associated
[ 4784.952249] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[ 4784.952254] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[ 4784.952259] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[ 5178.581608] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[ 5178.581616] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[ 5178.581620] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
Any help would be awsome,
Thanks
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khayyam
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Post by khayyam » Wed Oct 03, 2012 5:32 am

mechtech ...

I don't see any disconnection, or any of the usual signs that the signal between the client and AP is lost, so at a guess it may be an issue is with the card going into powersave. Please try disabling power saving and see if the problem persists.

Code: Select all

iwconfig wlan0 power off
If the issue continues, enable the 'debug' useflag on wpa_supplicant and add '-dd -f /var/log/wpa_supplicant.log' to wpa_supplicant_wlan0= in /etc/conf.d/net and pastebin the log, and also provide the output of 'iwconfig wlan0'.

best ... khay
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mechtech
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Post by mechtech » Wed Oct 03, 2012 8:00 am

Hey thanks for your help.

ok I feel like an idiot. I forgot that I turned off my WPA2 awhile back so im not using any encryption at the moment :oops: . I followed your post and and disabled power management but it only made it worse.

I have done some more testing. If i have power management on, i can keep the connection going using ping and just letting it run (it does drop some packets tho). I guess its acting as a "keep alive". If i have power management off and use ping again, it fails in a matter of seconds. Even if i don't use ping it still fails in the same amount of time. So far it has done this consistently. I've tried using some of the other power management options in iwconfig but they all give me weird errors. Only "off" and "on" work.

here is my full dmesg
http://pastebin.com/cjS0ahx8

and my iwconfig

Code: Select all

wlan0     IEEE 802.11bgn  ESSID:"TheMatrix"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 0C:D5:02:6F:C7:B6   
          Bit Rate=54 Mb/s   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=70/70  Signal level=-40 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:6   Missed beacon:0
a few seconds later...(barely got the first one)

Code: Select all

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
Thanks again :)
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khayyam
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Post by khayyam » Wed Oct 03, 2012 5:10 pm

mechtech ...

Is CONFIG_PM_RUNTIME enabled in the kernel?

The effect of ping is what you'd expect, the driver is kept from going into powersave. Explicitly disabling powersave may infact cause the driver to balk as the cards power management features are software driven. I'm somewhat speculating but I'm inclined to think PM is at issue.

best ... khay
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mechtech
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Post by mechtech » Wed Oct 03, 2012 8:48 pm

No, as far as i can tell CONFIG_PM_RUNTIME is not set. I ran the commands...

Code: Select all

mobilemech ~ # cd /usr/src/linux
mobilemech linux # cat .config | grep CONFIG_PM_RUNTIME
# CONFIG_PM_RUNTIME is not set
Do i need to add it? If so where is it in makeconfig?

Thanks again.
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khayyam
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Post by khayyam » Wed Oct 03, 2012 10:45 pm

mechtech wrote:

Code: Select all

# cat .config | grep CONFIG_PM_RUNTIME
mechtech ... avoid the useless use of cat

Code: Select all

# grep CONFIG_PM_RUNTIME .config
mechtech wrote:Do i need to add it? If so where is it in makeconfig?
Yes, if you read the doc/help you will see that it enables power management features for I/O devices. It's under "Power management and ACPI options" as "Run-time PM core functionality". Note that when in menuconfig a "/" and search term (such as "PM_RUNTIME") will show you where in the kernel this item is located.

best ... khay
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mechtech
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Post by mechtech » Wed Oct 03, 2012 11:56 pm

It WORKS! :D Thank you so much! I have power management turned on on the card and in the kernel now and it is working on my wpa2 network at work. I want to make sure it will work at home but its looking good so far.

I will try not to uselessly use cat anymore :P (I see now how it was redundant)

Thanks again!
Mechtech
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mechtech
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Post by mechtech » Thu Oct 04, 2012 2:43 am

Ok it doesnt work on my home network. It stopped shortly after I started it (2.5 min). Now im really confused :? . Im using wpa2 at work so maybe thats something. idk.

Thanks
Mechtech
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mechtech
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Post by mechtech » Thu Oct 04, 2012 3:06 am

im not sure if its because im dumb and not seeing something or if its because there really is something wrong.

I made a wpa_supplicant config file with my home network in it and used it to start the connection. It seems to be working now.

maybe ive configured something wrong but im not sure

Thanks again
mechtech
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mechtech
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Post by mechtech » Thu Oct 04, 2012 3:24 am

Another look at dmesg tho and its telling me that its reauthing every min or so. So wpa_supplicant is keeping it alive? Is that hows its supposed to work?
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BillWho
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Post by BillWho » Thu Oct 04, 2012 3:33 am

mechtech,

This is all you should get from dmesg:

Code: Select all

laptop linux # dmesg -T|grep wlan0
[Wed Oct  3 18:32:13 2012] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[Wed Oct  3 18:32:15 2012] wlan0: authenticate with 58:6d:8f:88:43:45
[Wed Oct  3 18:32:15 2012] wlan0: send auth to 58:6d:8f:88:43:45 (try 1/3)
[Wed Oct  3 18:32:15 2012] wlan0: authenticated
[Wed Oct  3 18:32:15 2012] wlan0: associate with 58:6d:8f:88:43:45 (try 1/3)
[Wed Oct  3 18:32:15 2012] wlan0: RX AssocResp from 58:6d:8f:88:43:45 (capab=0x431 status=0 aid=1)
[Wed Oct  3 18:32:15 2012] wlan0: associated
[Wed Oct  3 18:32:15 2012] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[Wed Oct  3 18:32:25 2012] wlan0: no IPv6 routers present
It's been running for about six hours :wink:
Good luck :wink:

Since installing gentoo, my life has become one long emerge :)
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mechtech
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Post by mechtech » Thu Oct 04, 2012 3:50 am

well mine defiantly isnt that...

Code: Select all

[Wed Oct  3 17:16:38 2012] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[Wed Oct  3 17:16:38 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:16:39 2012] wlan0: authenticated
[Wed Oct  3 17:16:39 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:16:39 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:16:39 2012] wlan0: associated
[Wed Oct  3 17:16:39 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:16:39 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:16:39 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:16:39 2012] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[Wed Oct  3 17:16:49 2012] wlan0: no IPv6 routers present
[Wed Oct  3 17:17:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:17:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:17:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:17:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:17:16 2012] wlan0: authenticated
[Wed Oct  3 17:17:16 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:17:16 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:17:16 2012] wlan0: associated
[Wed Oct  3 17:17:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:17:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:17:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:18:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:18:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:18:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:18:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:18:16 2012] wlan0: authenticated
[Wed Oct  3 17:18:16 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:18:16 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:18:16 2012] wlan0: associated
[Wed Oct  3 17:18:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:18:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:18:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:19:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:19:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:19:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:19:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:19:16 2012] wlan0: authenticated
[Wed Oct  3 17:19:16 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:19:16 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:19:16 2012] wlan0: associated
[Wed Oct  3 17:19:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:19:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:19:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:20:12 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:20:12 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:20:12 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:20:13 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:20:13 2012] wlan0: authenticated
[Wed Oct  3 17:20:13 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:20:13 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:20:13 2012] wlan0: associated
[Wed Oct  3 17:20:13 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:20:13 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:20:13 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:21:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:21:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:21:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:21:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:21:16 2012] wlan0: authenticated
[Wed Oct  3 17:21:16 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:21:16 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:21:16 2012] wlan0: associated
[Wed Oct  3 17:21:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:21:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:21:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:28:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:28:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:28:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:28:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:28:17 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 2)
[Wed Oct  3 17:28:17 2012] wlan0: authenticated
[Wed Oct  3 17:28:17 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:28:17 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:28:17 2012] wlan0: associated
[Wed Oct  3 17:28:17 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:28:17 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:28:17 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:31:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:31:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:31:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:31:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:31:16 2012] wlan0: authenticated
[Wed Oct  3 17:31:16 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:31:16 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:31:16 2012] wlan0: associated
[Wed Oct  3 17:31:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:31:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:31:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:36:31 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:36:31 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:36:31 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:36:32 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:36:32 2012] wlan0: authenticated
[Wed Oct  3 17:36:32 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:36:32 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:36:32 2012] wlan0: associated
[Wed Oct  3 17:36:32 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:36:32 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:36:32 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:38:35 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:38:35 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:38:35 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:38:36 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:38:36 2012] wlan0: authenticated
[Wed Oct  3 17:38:36 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:38:36 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:38:36 2012] wlan0: associated
[Wed Oct  3 17:38:36 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:38:36 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:38:36 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
[Wed Oct  3 17:46:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:46:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:46:15 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 0
[Wed Oct  3 17:46:16 2012] wlan0: authenticate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:46:16 2012] wlan0: authenticated
[Wed Oct  3 17:46:16 2012] wlan0: associate with 0c:d5:02:6f:c7:b6 (try 1)
[Wed Oct  3 17:46:16 2012] wlan0: RX AssocResp from 0c:d5:02:6f:c7:b6 (capab=0x401 status=0 aid=8)
[Wed Oct  3 17:46:16 2012] wlan0: associated
[Wed Oct  3 17:46:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 1
[Wed Oct  3 17:46:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 2
[Wed Oct  3 17:46:16 2012] wlan0: moving STA 0c:d5:02:6f:c7:b6 to state 3
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BillWho
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Post by BillWho » Thu Oct 04, 2012 4:35 am

Try starting it in a term, maybe the debug messages will provide a clue

Code: Select all

wpa_supplicant -iwlan0 -Dwext -d -c/etc/wpa_supplicant/wpa_supplicant.conf
Good luck :wink:

Since installing gentoo, my life has become one long emerge :)
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khayyam
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Post by khayyam » Thu Oct 04, 2012 5:13 am

BillWho wrote:Try starting it in a term, maybe the debug messages will provide a clue
BillWho ... you only get debug info if the debug useflag is set (which it isn't by default).
machtech wrote:Another look at dmesg tho and its telling me that its reauthing every min or so. So wpa_supplicant is keeping it alive? Is that hows its supposed to work?
mechtech ... no, it should only re-authenticate if the signal is lost.

Can you post the wpa_supplicant.conf entry for this network, and the output of the following command (obviously subsitituting 'ESSID' for the broadcast name of your access point.)

Code: Select all

# awk '{RS="Cell"}/ESSID/' <(iwlist wlan0 scan)
best ... khay
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mechtech
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Post by mechtech » Thu Oct 04, 2012 5:33 am

Thanks both of you.

Here is my wpa_supplicant.conf

Code: Select all

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
ap_scan=1
country=US

network={
	ssid="TheMatrix"
#	psk="****"
	key_mgmt=NONE
	priority=1
}

network={
	ssid="7706 2650"
	psk="****"
	priority=2
}
I just looked to see if i had a wpa_supplicant in /var/run and i do not.

first network is my home
second is work

here is the output of awk '{RS="Cell"}/ESSID/' <(iwlist wlan0 scan)

Code: Select all

01 - Address: 0C:D5:02:6F:C7:B6
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=60/70  Signal level=-50 dBm  
                    Encryption key:off
                    ESSID:"TheMatrix"
                    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=0000034c4b7227f7
                    Extra: Last beacon: 356ms ago
                    IE: Unknown: 00095468654D6174726978
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: Unknown: 32040C121860
                    IE: Unknown: 
                    IE: Unknown: DD090010180209F0000000
I tried starting wpa_supplicant with debuging but it wouldnt let me use the -f/var/log/wpa_supplicant. I used...

Code: Select all

wpa_supplicant -dd -iwlan0 -c/etc/wpa_supplicant/wpa_supplicant.conf -Dwext -f/var/log/wpa_supplicant.txt
Thanks again
mechtech
Last edited by mechtech on Thu Oct 04, 2012 6:10 am, edited 1 time in total.
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khayyam
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Post by khayyam » Thu Oct 04, 2012 6:01 am

mechtech ...

firstly, encryption is disabled on the AP, this is inadvisable, with such a setup it is trivial to sniff the psk and any other network traffic passing between the client and the AP. I'd suggest you enable WPA and configure the client to use it.

Code: Select all

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel

network={
    ssid="TheMatrix"
    bssid=0C:D5:02:6F:C7:B6
    scan_ssid=0
    proto=WPA2
    key_mgmt=WPA-PSK
    group=CCMP TKIP
    pairwise=CCMP TKIP
    psk=63_char_random_string
}
I'd hoped that the above output might provide some misconfiguration, but nothing there to suggest it should randomly disconnect. However, re powersave is CONFIG_CFG80211_DEFAULT_PS also enabled?

Also, the AP (Westell) seems to be a 802.11g am I correct?

best ... khay

ps. can you edit the above post and remove/break the long "IE: Unknown:" line as its causing the page to break format
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mechtech
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Post by mechtech » Thu Oct 04, 2012 6:20 am

I was planing on setting up WPA2 again but just never got around to it. I might as well fix that tomorrow (have alot of devices using it atm)

Code: Select all

mobilemech linux # grep CONFIG_CFG80211_DEFAULT_PS .config
grep: CONFIG_CFG80211_DEFAULT_PS=y
Yes it is a 802.11g modem/router.

Should i use something similar to the code you linked in my wpa_supplicant.conf? wpa_supplicant doesn't start automatically.
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khayyam
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Post by khayyam » Thu Oct 04, 2012 5:09 pm

mechtech wrote:Yes it is a 802.11g modem/router.
mechtech ... the reason I asked is that your PCI card is 802.11n and I have in the past seen issues with mixed g/n networks (but this is not the most likely issue).
mechtech wrote:Should i use something similar to the code you linked in my wpa_supplicant.conf? wpa_supplicant doesn't start automatically.
Yes, I provided the above as an example WPA2 network configuration. Rather than start wpa_supplicant from init you should simply define wpa_supplicant as the 'module' handling the interface (in /etc/conf.d/net) eg:

Code: Select all

modules_wlan0="!plug wpa_supplicant dhcpcd"
wpa_supplicant_wlan0="-Dnl80211"
wpa_timeout_wlan0="15"
config_wlan0="dhcp"
dhcpcd_wlan0="-t 10"
You would then link /etc/init.d/net.lo to /etc/init.d/net.wlan0 and use that to start the service (which will then start wpa_supplicant, dhcpcd, etc).

As CFG80211_DEFAULT_PS is currently enabled please try disabling it, the symptoms currently suggest powersave as the most likely issue.

Also, previously I showed how to enable debugging with wpa_supplicant, if the issue persists after disabling CFG80211_DEFAULT_PS then please enable the debug useflags, re-merge, connect, and post the log.

best ... khay
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mechtech
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Post by mechtech » Fri Oct 05, 2012 8:14 am

I've recompiled with that option off and it does the same thing. I recompiled again with CONFIG_PM_RUNTIME=n as well just to see but no change. It is almost always reconnecting every 60 seconds UNLESS I turn on power management on the card with

Code: Select all

iwconfig wlan0 power on
If i use that it will reconnect less often and never (so far) while in use. I haven't yet tested it with a streaming application.

I resetup my /etc/conf.d/net like you said and use

Code: Select all

net.wlan0 start
to start it now

here is my wpa_supplicant.log. Hopfully it helps.
http://pastebin.com/cn31pqWB

Thanks
mechtech
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khayyam
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Post by khayyam » Fri Oct 05, 2012 12:32 pm

mechtech ...

When you say "UNLESS I turn on power management" you mean with PS enabled the issue is decreased, and if so how often do the disconnects occur with PS enabled?

Code: Select all

CTRL-EVENT-DISCONNECTED bssid=0c:d5:02:6f:c7:b6 reason=4
This "reason=4" means disassociated due to inactivity, but there is no clue given as to why, but my guess is a beacon miss. It would be good to know if the STA (client) or AP is the cause, but getting this requires that CONFIG_ATH_DEBUG is enabled (well, with ath5k it would be CONFIG_ATH5K_DEBUG, and as I don't see similar for ath9k I assume the above will suffice). With debug enabled you should be able to do the following:

Code: Select all

# echo 0xc80000 > /proc/sys/net/wlan0/debug
... and read the debug in dmesg or /var/log/messages. If its a beacon miss you would see it there, and which end of the connection is the cause.

However, before trying the above we might try increasing beacon misses ... this is not a fix, as I really can't say what the exact cause is, but it should make the connection less inclined to drop due to beacon misses. Doing this however is not really a good idea as the reason for such a setting is to detect when a signal is unavailable (and so close the connection), still, if this fixes it we know that beacon misses are the reason the disassoc happens.

I see from the above dmesg that your using 3.3.8-gentoo, so before doing any of the above it might be an idea to build 3.5.4 as the problem may be fixed in a more recent kernel.

So, to change beacon misses edit /usr/src/linux-{version}/drivers/net/wireless/ath/ath9k and change the value of #define ATH_DEFAULT_BMISS_LIMIT ... its probably set to 10, change it to 20.

Again, it may be that this issue is fixed so before trying to work out the exact cause it is probably a good idea to try a more recent kernel, as what I'm suggesting above is really more of an attempt at getting at the cause than a possible fix.

best ... khay
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mechtech
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Post by mechtech » Sat Oct 06, 2012 8:15 am

Ive just compiled 3.6.0 now and am running it.
When you say "UNLESS I turn on power management" you mean with PS enabled the issue is decreased, and if so how often do the disconnects occur with PS enabled?
If i keep power management on with iwconfig, the time between disconnects goes from every 30-120sec to around 10-15min. And from what i can see it wont disconnect if its in use (e.g. emerge, ping). That almost makes it a non issue from what i can see. When i was running 3.3.8 with power managment on it was around 3-5 min between drops so something changed in the new kernel or in how i configured it.

I tried to use

Code: Select all

echo 0xc80000 > /proc/sys/net/wlan0/debug
but I dont have a wlan0 in /proc/sys/net folder. I therefor haven't tried messing with the becon miss limit.

Im going to let it run overnight and I'll post the logs for it tomorrow

Thanks

EDIT:
LOGS
https://gist.github.com/3844391 dmesg
https://gist.github.com/3844390 wpa_supplicant
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khayyam
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Post by khayyam » Sun Oct 07, 2012 8:50 pm

mechtech ...

Its getting difficult for me to follow what your doing, and though I can't say for certain that powersave is the problem it seems like the most likely cause given the symptoms.

Please try booting with pci=noacpi as a boot parameter and see if the problem persists.

best ... khay
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mechtech
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Post by mechtech » Mon Oct 08, 2012 1:33 am

Sorry for the confusion.

I tried pci=noacpi but it gave me a kernel panic.
I'm noticing that it is very inconsistent between re-associations. Sometimes 3 min, other times 20 min.

Thanks

mechtech
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khayyam
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Post by khayyam » Mon Oct 08, 2012 4:35 am

mechtech wrote:Sorry for the confusion.
mechtech ... I mean't for example in the above, does the /proc/sys/net/ exist when CONFIG_ATH_DEBUG is enabled ... or not, I can't tell from your reply.
mechtech wrote:I tried pci=noacpi but it gave me a kernel panic.
OK, I'd hoped it'd at least boot, though running without ACPI is not really any kind of fix. Anyhow, with regard to CFG80211_DEFAULT_PS and CONFIG_PM_RUNTIME I can't tell from the above what was tried, only that one or other doesn't work. I'd suggest having both enabled, and then enabling/disabling powersave, via i'wconfig wlan0 power (on|off)', test, and then disable one or other, test, disable both, test .. etc.

Also, I just noticed in the above your passing '-Dwext' to wpa_supplicant, your should try with '-Dnl80211'.
mechtech wrote:I'm noticing that it is very inconsistent between re-associations. Sometimes 3 min, other times 20 min.
This doesn't tell us anything ...

best ... khay
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mechtech
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Post by mechtech » Tue Oct 16, 2012 11:41 pm

Ok ive been working on this over the past couple weeks and still have nothing. I've tried different variations of the power management options in the kernel like you suggested, but it still does the same thing. Dmesg is reporting a new error though:

Code: Select all

...
phy0: Failed to stop TX DMA, queues=0x001!
...
But it looks like they fixed the issue Here.

I've since installed xfce and a new network manager so iwconfig and wpa_supplicant are not in use anymore but the issue still persists.

/proc/sys/net/ does not exist when CONFIG_ATH_DEBUG is enabled from what i can remember but i will double check that.
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