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Old 06-24-2010, 10:10 AM   #1
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Registered: Jun 2010
Posts: 2

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Wireless disconnects and cant re-auth on Fedora 13 x64.

Hi All,

I'm currently using Fedora 13 x64 and have noticed a strange problem with my wireless.

At random intervals it will disconnect, be it 5 minutes or 3 hours and then it will not re-auth no matter how long I leave it. The wireless is running WPA/WPA2, With TKIP/AES encryption. The router only supports b/g and the Wireless NIC is only b/g.

Not sure what driver/software it is using. I noticed I do have wpa_supplicant installed but there doesnt seems to be much happening in /etc/wpa_supplicant/wpa_supplicant.conf apart from the below.

[daniel@Enterprise ~]$ su -c 'cat /etc/wpa_supplicant/wpa_supplicant.conf'


[daniel@Enterprise ~]$
Output of /etc/sysconfig/network-scripts/ifcfg-wlan0

[root@Enterprise network-scripts]# cat ifcfg-wlan0 

# Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller

[root@Enterprise network-scripts]#
and just in case this helps

[daniel@Enterprise ~]$ uname -a

Linux Enterprise #1 SMP Fri Jun 11 09:38:12 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux

[daniel@Enterprise ~]$
Any response is much appreciated. thankyou.

Last edited by aure; 06-24-2010 at 10:17 AM.
Old 06-24-2010, 12:22 PM   #2
Registered: Oct 2006
Location: Brunswick, MD
Distribution: gNewSense 2.3 (deltah) i386
Posts: 57

Rep: Reputation: 22
I run Fedora 12 (Constantine)...before, I ran Fedora 11 (Leonidas)

What would happen after a certain time is that, when my computer would do certain things I think with power management, sometimes, the wireless card would not connect to the network in the house (my card is BCM4357; my last laptop's card was BCM4312). IRRESPECTIVELY, the connection was unable to be re-established (I assume, though in error possibly, that this is the case with you). So, I would issue the following commands:
rmmod wl.ko
#Now that the ${BROADCOM}/wl.ko is removed...I may or may not need to do this...
rmmod lib80211
#So, that is that.   I will try again.   First, I wait.   Then...
modprobe lib80211
#This puts one part of the driver in place, but I still need the wl.ko...
insmod ${BROADCOM}/wl.ko
#There, that should work...
The reason I underlined the ${BROADCOM} part is to let you know that wherever the driver is, from there it needs to be accessed. Whenever I did that on my laptop, it seemed to re-establish the connection. Funny, though, with Fedora 12, I never had to worry about that. Hope this helps
Old 06-25-2010, 05:02 AM   #3
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Registered: Jun 2010
Posts: 2

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Thanks for that PenGUiN_6_1, Unfortunatly it didnt work exactly for 2 reasons, I'm quite new to this and I am prob missing something obvious, Il list the steps I took with your procedure.

On closer inspection of this problem it doesnt seem to be a power/timeout issue, It only disconnects when it is under heavy load (Downloading above 800kbps+)

I done the following with your instructions.

rmmod b43.ko
#the module is named b43.ko, This however removed the wireless which i believe is correct.

rmmod lib80211
#I do have this module on my system as I found the lib80211.ko but it wasnt loaded

insmod b43.ko
#I tried this however it brought up the following error message.
(insmod: error inserting 'b43.ko': -1 Invalid module format)

I went into the location of the drivers before doing any commands.
(/lib/modules/ for b43.ko etc

So hopefully its just a case of loading that module again, Although I would like a more permanent solution and not have to unload/load a module everytime this happens.

Please bare with me as I am prob doing this all wrong!

Thankyou for any help.

Last edited by aure; 06-25-2010 at 05:08 AM.
Old 07-04-2010, 07:00 PM   #4
Registered: Oct 2006
Location: Brunswick, MD
Distribution: gNewSense 2.3 (deltah) i386
Posts: 57

Rep: Reputation: 22
Unfortunately I am unsure of such a solution. Believe it or not, another computer I know of had the same problem with Windows Vista...every so often it has to reauthenticate...even with a WIRED connection!


fedora, wireless, wpa, wpasupplicant

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