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Old 11-05-2009, 10:35 AM   #1
speel
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Broadcom 4322 card issue


This is the senario, i'll boot the computer, connection will be great for about..2 minutes then there goes the connect. This happens on any wifi network I connect on, doesn't matter if im in school, home, outside it always happens when connected to a wifi network. The problem is the connection and/or packets drop dramaticly almost down to 56k speeds and then eventually the card will totally disconnect and try to reconnect to the network again. Is there any way I can find out whats causing this?

( if it matters i'm using ubuntu 9.10, and this happens across all distros )
 
Old 11-05-2009, 11:25 AM   #2
nimnull22
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Ok, when you lose the connection, from root console do: "ifdown wlan0" (or wlan1) and after "ifup wlan0", and after "iwlist wlan0 scan". Will it show you AP?
 
Old 11-05-2009, 11:31 AM   #3
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Quote:
Originally Posted by nimnull22 View Post
Ok, when you lose the connection, from root console do: "ifdown wlan0" (or wlan1) and after "ifup wlan0", and after "iwlist wlan0 scan". Will it show you AP?
I'll try that when I get home( in class right now), well 90% of the time the card will stay connected to the network and totally lose speed before it disconnects, so the disconnecting from the networking doesn't happen as often as the slow speed problem.
 
Old 11-05-2009, 11:46 AM   #4
nimnull22
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Is it internal wireless card or external. Anyway, you can just turn it off and on again, and see what is happened.
 
Old 11-05-2009, 03:04 PM   #5
speel
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Quote:
Originally Posted by nimnull22 View Post
Is it internal wireless card or external. Anyway, you can just turn it off and on again, and see what is happened.
internal, yea did that to and the problem would repeat
 
Old 11-05-2009, 06:10 PM   #6
nimnull22
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OK, it is look like driver problem.
You can try "modprobe -r <driver name>" and then "modprobe <driver name>.
I have internal Broadcom Corporation BCM4311 and my driver name is "b43", additionally you can look into /var/log/messages and to /var/log/warn, may be there is something interesting your driver there.
 
Old 11-05-2009, 07:42 PM   #7
speel
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Quote:
Originally Posted by nimnull22 View Post
OK, it is look like driver problem.
You can try "modprobe -r <driver name>" and then "modprobe <driver name>.
I have internal Broadcom Corporation BCM4311 and my driver name is "b43", additionally you can look into /var/log/messages and to /var/log/warn, may be there is something interesting your driver there.
Well here is the output of /var/log/messages:
Code:
anthony@leonidas:~$ cat /var/log/messages | grep Broadcom
Nov  4 12:27:33 leonidas kernel: [   19.722109] b43-phy0: Broadcom 4322 WLAN found (core revision 16)
Nov  4 12:27:33 leonidas kernel: [   19.811697] Broadcom 43xx driver loaded [ Features: PL, Firmware-ID: FW13 ]
Nov  4 12:34:41 leonidas kernel: [   10.047214] b43-phy0: Broadcom 4322 WLAN found (core revision 16)
Nov  4 12:34:41 leonidas kernel: [   10.141570] Broadcom 43xx driver loaded [ Features: PL, Firmware-ID: FW13 ]
Nov  4 12:38:38 leonidas kernel: [  246.631527] eth1: Broadcom BCM432b 802.11 Wireless Controller 5.10.91.9
Nov  4 12:38:38 leonidas kernel: [  246.740056] eth1: Broadcom BCM432b 802.11 Wireless Controller 5.10.91.9
Nov  4 13:02:37 leonidas kernel: [    8.330825] eth1: Broadcom BCM432b 802.11 Wireless Controller 5.10.91.9
Nov  5 10:21:30 leonidas kernel: [    7.375566] eth1: Broadcom BCM432b 802.11 Wireless Controller 5.10.91.9
Nov  5 15:58:50 leonidas kernel: [    8.103959] eth1: Broadcom BCM432b 802.11 Wireless Controller 5.10.91.9
there is no /var/log/warn tho
 
Old 11-05-2009, 07:57 PM   #8
speel
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Quote:
Originally Posted by nimnull22 View Post
Ok, when you lose the connection, from root console do: "ifdown wlan0" (or wlan1) and after "ifup wlan0", and after "iwlist wlan0 scan". Will it show you AP?
Code:
anthony@leonidas:/var/log$ sudo ifdown eth2
ifdown: interface eth2 not configured
anthony@leonidas:/var/log$ sudo ifup eth2
Ignoring unknown interface eth2=eth2.
anthony@leonidas:/var/log$ iwlist eth2 scan
eth2      Interface doesn't support scanning.

anthony@leonidas:/var/log$
 
Old 11-05-2009, 08:05 PM   #9
nimnull22
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..."This is the senario, i'll boot the computer, connection will be great for about..2 minutes then there goes the connect. This happens on any wifi network I connect on, doesn't matter if im in school, home, outside it always happens when connected to a wifi network"...

Excuse me! Are you talking about ethernet or wireless card?

eth2 = ethernet, this is not wireless.

wlan0, wlan1 - wireless card.

Could you please, do under root "lspci".
 
Old 11-05-2009, 08:35 PM   #10
jschiwal
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Moved: This thread is more suitable in Linux Wireless Networking and has been moved accordingly to help your question get the exposure it deserves.
 
Old 11-05-2009, 08:37 PM   #11
speel
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Quote:
Originally Posted by nimnull22 View Post
..."This is the senario, i'll boot the computer, connection will be great for about..2 minutes then there goes the connect. This happens on any wifi network I connect on, doesn't matter if im in school, home, outside it always happens when connected to a wifi network"...

Excuse me! Are you talking about ethernet or wireless card?

eth2 = ethernet, this is not wireless.

wlan0, wlan1 - wireless card.

Could you please, do under root "lspci".
Wireless card and yes this is whats weird about it to, here is the output of lspci

Code:
anthony@leonidas:/var/log$ sudo lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
00:01.0 PCI bridge: Hewlett-Packard Company Device 9602
00:04.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 0)
00:05.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 1)
00:06.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 2)
00:07.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 3)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3a)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:18.0 Host bridge: Advanced Micro Devices [AMD] Mobile K10 [Turion X2, Athlon X2, Sempron] HyperTransport Configuration (rev 40)
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 11h [Turion X2, Athlon X2, Sempron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Mobile K10 [Turion X2, Athlon X2, Sempron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Mobile K10 [Turion X2, Athlon X2, Sempron] Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Mobile K10 [Turion X2, Athlon X2, Sempron] Link Control
01:05.0 VGA compatible controller: ATI Technologies Inc RS780M/RS780MN [Radeon HD 3200 Graphics]
01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller
08:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller
08:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller
08:00.3 System peripheral: JMicron Technology Corp. MS Host Controller
08:00.4 System peripheral: JMicron Technology Corp. xD Host Controller
09:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01)
0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
anthony@leonidas:/var/log$
now here is the output of iwconfig

Code:
anthony@leonidas:/var/log$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth2      IEEE 802.11  Nickname:""
          Access Point: Not-Associated   
          Link Quality:5  Signal level:218  Noise level:162
          Rx invalid nwid:0  invalid crypt:0  invalid misc:0
which is strange, now here is where it gets really odd

Code:
anthony@leonidas:/var/log$ dmesg | grep Broadcom
[    8.103959] eth1: Broadcom BCM432b 802.11 Wireless Controller 5.10.91.9
[ 5196.633945] Broadcom 43xx driver loaded [ Features: PL, Firmware-ID: FW13 ]
anthony@leonidas:/var/log$
 
Old 11-05-2009, 08:49 PM   #12
jschiwal
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I would suggest keeping a terminal window open and occasionally running /usr/sbin/iwconfig to track your bitrate. I think your bitrate is being downgraded during times of interference and is never upgraded.
Do you use NetworkManager to manage your connection?
Do you use the "b43" driver? Edit: yes you do!
What is your kernel version?
For which wireless routers (that you know of) is this an issue? Which wireless router do you use at home?

Last edited by jschiwal; 11-05-2009 at 08:52 PM.
 
Old 11-05-2009, 08:54 PM   #13
speel
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Quote:
Originally Posted by jschiwal View Post
I would suggest keeping a terminal window open and occasionally running /usr/sbin/iwconfig to track your bitrate. I think your bitrate is being downgraded during times of interference and is never upgraded.
Do you use NetworkManager to manage your connection?
Do you use the "b43" driver?
What is your kernel version?
For which wireless routers (that you know of) is this an issue? Which wireless router do you use at home?
Yea NetworkManager, nope, the driver thats in use is lib80211_crypt_tkip, wl, and the kernel is 2.6.31-14-generic, as for the router it really happens on any wireless router/network I connect to the one I mainly use at home is a d-link router ( wbr-2310 ) to be specific.
 
Old 11-05-2009, 09:20 PM   #14
nimnull22
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You know, my suggestion, Ubuntu 9.10 - is really is unstable and is not reliable. If NetworkManager called wireless interface eth2 - this mean they really mess things up.
Ubuntu has good forum on their server and suggest you to read what people say there and ask there. Because it is really UBUNTU problems.
Second, your wireless card can use 802.11n - so, may be to disable it.
Third, if ubuntu has called wireless eth2, may be it gave wrong configuration to wireless interface.
 
Old 11-05-2009, 09:24 PM   #15
speel
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Quote:
Originally Posted by nimnull22 View Post
You know, my suggestion, Ubuntu 9.10 - is really is unstable and is not reliable. If NetworkManager called wireless interface eth2 - this mean they really mess things up.
Ubuntu has good forum on their server and suggest you to read what people say there and ask there. Because it is really UBUNTU problems.
Second, your wireless card can use 802.11n - so, may be to disable it.
Third, if ubuntu has called wireless eth2, may be it gave wrong configuration to wireless interface.
I also had a similar issue under Arch the wireless card kept switching between eth1 and eth0, it was a real pain, possibly the card is on its way out,any suggestion on a compatible usb adapter I could possibly buy?
 
  


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