Red Hat Bugzilla – Bug 703625
BCM4312 wireless w/ b43 driver and broadcom-wl-188.8.131.52 firmware associates, works for a while, drops the connection, and then fails to reconnect.
Last modified: 2012-10-30 11:56:53 EDT
Description of problem:
I have an HP netbook with a BCM4312 wireless chip. I downloaded and used b43-fwcutter to install the broadcom-wl-184.108.40.206 firmware following the directions for Fedora on http://linuxwireless.org/en/users/Drivers/b43.
I have no problem associating with my unsecured network. Network manager finds the access point and associates just fine. Wifi works just fine, as far as I can tell, for a variable amount of time and/or network traffic, and then the connection drops and I can't get it to reconnect without rebooting.
Version-Release number of selected component (if applicable):
wpa_supplicant-0.7.3-4.fc15.i686 and wpa_supplicant-0.7.3-6.fc15.i686
Perfectly. Both with a preupgrade-installed version of F15, and a complete wipe-and-install.
Steps to Reproduce:
The wpa_supplicant.log isn't particularly helpful:
CTRL-EVENT-DISCONNECTED bssid=00:0f:66:91:ce:9c reason=4
I updated libeap and wpa_supplicant to 0.7.3-8.fc15.i686 (grabbed from koji, with thanks to Aron Griffis for the pointer). I don't know yet if it has solved the problem.
Looks like the new version of wpa_supplicant is working. If my netbook can manage staying connected overnight, I'll close this bug.
Created attachment 498168 [details]
grep NetworkManager /var/log/messages
NetworkManager associates to the open wifi around 15:19, and the connection is dropped around 16:20 and fails to reassociate.
No joy. Still having problems, so attached the NetworkManager log above. Darn.
According to http://linuxwireless.org/en/users/Drivers/b43, a BCM4312-based card should use version 220.127.116.11 (labeled as 18.104.22.168 at downloads.openwrt.org) instead. So, I replaced the existing firmware in /lib/firmware with that from the 22.214.171.124 tarball. Same problem. Activation successful at 09:35:26, and at 09:54:52 the supplicant interface state changed to disconnected.
For comparison, and to make sure that there hasn't been a hardware failure, I wiped my netbook and installed F14 along with the 126.96.36.199 firmware. Wifi appears to be stable now.
I believe (based on comparing logs and behavior) that I am experiencing the same issue.
Hardware is a Dell Latitude D420, which contains a Broadcom BCM4312 (in the form of a Dell Wireless 1490). It has a fresh install of F13 with all current updates as of 18 May 2011. Kernel is 188.8.131.52-68.fc13.i686.
Behavior is identical to what Grant describes. The machine will connect just fine off of a fresh boot or on coming up from standby, but after an unpredictable amount of time the wireless connection will be dropped. The system will prompt the user repeatedly to enter the WPA key, but it will not reconnect until the system is either rebooted or put into standby and brought back out again.
I will attach the output of `cat /var/log/messages | grep NetworkManager` over a period of time in which the issue manifested itself several times. I can provide other logs and diagnostic output as desired.
Created attachment 499532 [details]
`cat /var/log/messages | grep NetworkManager` from Dell Latitude D420
Possibly relevant /var/log/messages lines from a fresh F13 install on a Dell Latitude with a Broadcom BCM4312 wireless.
Same issue here. Annoying as the devil. Died in the middle of this report.
Machine here is an HP dv9904ca, and the running kernel is unknown at this point. I forgot to write it down before I booted into Mint-10 in order to post this, but it was the last updated kernel as of yesterday evening.
Still an issue here. Connection randomly fails, and will not re-connect.
If I had to guess, I'd say the radio is shutting down.
Same system works peachy keen fine and consistently with MINT-10.
Just wanted to comment that the issue happened again yesterday, after the upgrade to F15. Exact same behavior: system drops wireless connection, begins searching, tries to reconnect and prompts for WPA password, but then will not reconnect until I put it into standby and bring it back.
Getting the exact same issue. Has there been any progress on this?
I have tried using the latest b43-fwcutter (version 014, not available in the repos) with more up-to-date firmware, but the problem persists.
I'm experiencing this as well, and willing to work with Fedora developers on this. This did not occur on Ubuntu on the same hardware.
What kernel version is working? Sounds like a git-bisect may find the offending change. If Ubuntu works and Fedora doesn't, that usually just means it's something that changed from one version of the kernel to another, so it'll be the other way round next time there's an update.
The issue also happens on a fresh Fedora 16 installation using a BCM4311 wifi adapter (on a Dell Inspiron 1501).
In my case unloading the kernel module and reloading it (modprobe -r b43;modprobe b43) brings the wifi back for a while (after an unpredictable amount of time it drops again and I have to repeat the process).
Hardware: Acer Aspire One (Model KAV60) fresh install of Fedora 16 XFCE replaced Fedora LXDE and Fedora Security previous installs (I suspected from the spins).
Exactly the same symptoms: Random time with connection thru BCM 4312 and suddenly lost. To reenable, a reboot is required.
Problem seems to have gone away w/ F17 (for me, anyway).
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I am still getting this problem on F17. I can disable wireless, unload the b43 driver, load it, and reenable wireless to "fix" it (so clearly, even if a hardware problem, it could be worked around in software). I have a Dell Inspiron 1501 with bcm4311.
Reopened for F17 as bug#871210