20140125 JAN 25 2014 Broadcom wireless I hope that wl STA in the repository gets updated and makes this post useless. I am new, so please help where possible. _______________________________ Linux UBUNTU Symptoms: Every (or many) updates Break wireless Corporate Environments Multiple Wireless Access Points (WAP) Campus Wireless (Universities) Frequent disconnects WPA2 connected but not usable _______________________________ Wireless Hardware: Broadcom 4321 OS: UBUNTU 12.04 LTS with latest kernel using standard Connection Manager, still has issues with multiple keys in multiple WAP setup. ____________________________________________________ The wl driver in the repository that can be installed using the, command line or proprietary/additional drivers in UBUNTU is broken for my hardware. 20140125 My Data: installed from repository or additional drivers => won't work. installed from my compile/make per Broadcom's instructions => works. _____________________________________________________ SOLUTION: go to Broadcom's site and get the new universal wl driver: Broadcom has provided this as an official release. it provides hardware encryption. _____________________________________________________ http://www.broadcom.com/docs/linux_sta/README.txt Please keep reading. ( if your hardware is not supported by this go to the end of this post. ) COMPILE FROM SOURCE PER THE INSTRUCTIONS. DO NOT USE REPOSITORY wl DRIVER, UNINSTALL IT. THIS MEANS DON'T USE THE ADDITIONAL DRIVERS SOLUTION in UBUNTU. I Recommend creating your own folder to place the new driver so that nothing will change it. ______________________________________________________ As of 20140125 every or most kernel or wireless security updates will break the new Broadcom wl.ko module. _ Quick Restore: => Remove various kernel modules that may conflict and Reinstall Broadcoms new universal STA driver. Open Terminal (ctrl+alt+t) Paste next line to get started, sudo rmmod b43 You may get a message that b43 is not installed and won't be removed. This is OK, we are just making sure its not there. Now Paste what is between the following lines. They will remove other possible drivers including the repositories wl STA driver and reinstall the Broadcom Universal STA driver you have built which Includes 80211 security ________________________________ sudo rmmod brcmsmac sudo rmmod ssb sudo rmmod bcma sudo rmmod wl sudo modprobe lib80211 sudo modprobe cfg80211 cd /<Your_Path_TO_New_hybrid_wl>/ sudo insmod wl.ko cd ~ exit _________________________________ after this your hardware should work. _ I know there is a way (UPSTART), to make the updates not install the the repositories wl kernel module. I just want to get this out there because I have spent too much time and too many days solving this again and again and ... . _ In Multiple WAPs under one login, WAP keys are not managed correctly and may only connect at the original WAP location where you set up the wireless connection. Run the scripts above and it will reset to your new WAP location. (you might need to edit wireless connections and uninstall that wireless configuration) Some Background: There was a security flaw in 'WPA & WPA2 Enterprise' wireless security protocol. It was fixed with an added layer of encryption, in the initiation of your wireless connection. I feel that not all clients/servers have updated to this correctly. _ System broken? Get to GRUB (Grand Unified Boot Loader). Boot and hold 'esc' key. Select other options for UBUNTU. Choose a previous kernel version. Try any. Just booting again to the default has sometimes fixed problems. _ Hardware not supported ? => try searching for the "fwcutter" method. "fwcutter" used to work for my newer brcm 4321 hardware, but updates now prevent my hardware from working even with this method. "fwcutter" still works for my older hardware.
Disclaimer: Be Careful, use at your own risk. ** Attachment added: "Broadcom's Universal wl STA" https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1134389/+attachment/3957070/+files/README.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1134389 Title: Broadcom Sta/wl Drivers causes random kernel panics on ubuntu raring Status in Broadcom Feature Request and Bug Reporting: New Status in “bcmwl” package in Ubuntu: Confirmed Bug description: While starting from Ubuntu 11.10 to 12.10 wl drivers worked like a charm on my broadcom 4312, it seems that the drivers in ubuntu 13.04 started causing kernel panics while using the network. The version I'm using is a fresh install of ubuntu 13.04 amd64 plus all the updates as of today and the home folder restored from an ubuntu 12.10 backup, but I don't think it could make the difference as the freeze happens also when logged as a "just created" user. I'm pretty sure this problem is cause of broadcom drivers (or broadcom related network stuff) because as soon as I blacklisted wl, mac80211 and cfg80211 modules and plugged in an usb ralink wifi card it stopped to freeze. Ubuntu version: 13.04 64 bits Package version: 6.20.155.1+bdcom-0ubuntu6 ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu6 ProcVersionSignature: Ubuntu 3.8.0-7.15-generic 3.8.0 Uname: Linux 3.8.0-7-generic x86_64 NonfreeKernelModules: wl fglrx ApportVersion: 2.8-0ubuntu4 Architecture: amd64 Date: Wed Feb 27 15:15:33 2013 InstallationDate: Installed on 2013-01-20 (37 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130118) MarkForUpload: True ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=it_IT.UTF-8 SHELL=/bin/bash SourcePackage: bcmwl UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/broadcom/+bug/1134389/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
