[ubuntu] BCM4331 problems

BCM4331 problems

For some reason recently my wireless connection is unstable, it connects for a while then dces and cant establish connection anymore

Code:

03:00.0 Network controller: Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02)

i tried fixing it by using this https://help.ubuntu.com/community/Ma...eiric#Wireless but it didnt fix it
I have ubuntu 12.04 LTS

Re: BCM4331 problems

Hi, please post the output of..

Code:

lspci -nn | egrep '0200|0280' lsmod rfkill list all

thanks.

Re: BCM4331 problems

Code:

02:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM57765 Gigabit Ethernet PCIe [14e4:16b4] (rev 10) 03:00.0 Network controller [0280]: Broadcom Corporation BCM4331 802.11a/b/g/n [14e4:4331] (rev 02)

Code:

Module Size Used by btrfs 638248 0 zlib_deflate 26622 1 btrfs libcrc32c 12543 1 btrfs ufs 78131 0 qnx4 13309 0 hfsplus 83544 0 hfs 49479 0 minix 31453 0 ntfs 100206 0 vfat 17308 0 msdos 17132 0 fat 55605 2 vfat,msdos jfs 175085 0 xfs 747494 0 reiserfs 230943 0 ext2 67987 0 usb_storage 39683 0 snd_hda_codec_hdmi 31775 1 snd_hda_codec_cirrus 23322 1 parport_pc 32114 0 ppdev 12849 0 rfcomm 37291 0 bnep 17711 2 arc4 12473 2 b43 339138 0 snd_hda_intel 32719 3 snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec snd_pcm 80916 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec mac80211 440734 1 b43 cfg80211 178818 2 b43,mac80211 snd_seq_midi 13132 0 i915 423514 4 drm_kms_helper 45466 1 i915 drm 197641 5 i915,drm_kms_helper i2c_algo_bit 13199 1 i915 joydev 17393 0 snd_rawmidi 25424 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi bcma 25587 1 b43 ssb 55319 1 b43 snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event uvcvideo 67203 0 apple_gmux 12655 0 videodev 86588 1 uvcvideo applesmc 18978 0 bcm5974 17199 0 input_polldev 13648 1 applesmc pcmcia 39826 2 b43,ssb snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq mei 36570 0 video 19115 2 i915,apple_gmux apple_bl 13425 0 pcmcia_core 21511 1 pcmcia mac_hid 13077 0 snd 62218 16 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 14635 1 snd btusb 17919 1 snd_page_alloc 14115 2 snd_hda_intel,snd_pcm bluetooth 164387 13 rfcomm,bnep,btusb lp 17455 0 parport 40930 3 parport_pc,ppdev,lp hid_apple 13166 0 usbhid 41937 0 hid 77428 2 hid_apple,usbhid firewire_ohci 40180 0 firewire_core 56940 1 firewire_ohci crc_itu_t 12627 1 firewire_core tg3 137318 0 sdhci_pci 18324 0 sdhci 28241 1 sdhci_pci

Code:

0: hci0: Bluetooth Soft blocked: yes Hard blocked: no 1: phy0: Wireless LAN Soft blocked: yes Hard blocked: no

Re: BCM4331 problems

Hi, let's get rid of this first,

Code:

1: phy0: Wireless LAN Soft blocked: yes

click the wireless icon...upper right and make sure the wireless
enable is checked.
please check and report back
thanks.

Re: BCM4331 problems

well im really sorry about that, using the usb tethering and forgot that i turned off wifi

Code:

Module Size Used bybtrfs 638248 0 zlib_deflate 26622 1 btrfs libcrc32c 12543 1 btrfs ufs 78131 0 qnx4 13309 0 hfsplus 83544 0 hfs 49479 0 minix 31453 0 ntfs 100206 0 vfat 17308 0 msdos 17132 0 fat 55605 2 vfat,msdos jfs 175085 0 xfs 747494 0 reiserfs 230943 0 ext2 67987 0 usb_storage 39683 0 snd_hda_codec_hdmi 31775 1 snd_hda_codec_cirrus 23322 1 parport_pc 32114 0 ppdev 12849 0 rfcomm 37291 0 bnep 17711 2 arc4 12473 2 b43 339138 0 snd_hda_intel 32719 3 snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec snd_pcm 80916 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec mac80211 440734 1 b43 cfg80211 178818 2 b43,mac80211 snd_seq_midi 13132 0 i915 423514 4 drm_kms_helper 45466 1 i915 drm 197641 5 i915,drm_kms_helper i2c_algo_bit 13199 1 i915 joydev 17393 0 snd_rawmidi 25424 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi bcma 25587 1 b43 ssb 55319 1 b43 snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event uvcvideo 67203 0 apple_gmux 12655 0 videodev 86588 1 uvcvideo applesmc 18978 0 bcm5974 17199 0 input_polldev 13648 1 applesmc pcmcia 39826 2 b43,ssb snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq mei 36570 0 video 19115 2 i915,apple_gmux apple_bl 13425 0 pcmcia_core 21511 1 pcmcia mac_hid 13077 0 snd 62218 16 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 14635 1 snd btusb 17919 1 snd_page_alloc 14115 2 snd_hda_intel,snd_pcm bluetooth 164387 13 rfcomm,bnep,btusb lp 17455 0 parport 40930 3 parport_pc,ppdev,lp hid_apple 13166 0 usbhid 41937 0 hid 77428 2 hid_apple,usbhid firewire_ohci 40180 0 firewire_core 56940 1 firewire_ohci crc_itu_t 12627 1 firewire_core tg3 137318 0 sdhci_pci 18324 0 sdhci 28241 1 sdhci_pci

Code:

0: hci0: Bluetooth Soft blocked: yes Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no

Re: BCM4331 problems

well im really sorry about that, using the usb tethering and forgot that i turned off wifi

Code:

Module Size Used bybtrfs 638248 0 zlib_deflate 26622 1 btrfs libcrc32c 12543 1 btrfs ufs 78131 0 qnx4 13309 0 hfsplus 83544 0 hfs 49479 0 minix 31453 0 ntfs 100206 0 vfat 17308 0 msdos 17132 0 fat 55605 2 vfat,msdos jfs 175085 0 xfs 747494 0 reiserfs 230943 0 ext2 67987 0 usb_storage 39683 0 snd_hda_codec_hdmi 31775 1 snd_hda_codec_cirrus 23322 1 parport_pc 32114 0 ppdev 12849 0 rfcomm 37291 0 bnep 17711 2 arc4 12473 2 b43 339138 0 snd_hda_intel 32719 3 snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec snd_pcm 80916 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec mac80211 440734 1 b43 cfg80211 178818 2 b43,mac80211 snd_seq_midi 13132 0 i915 423514 4 drm_kms_helper 45466 1 i915 drm 197641 5 i915,drm_kms_helper i2c_algo_bit 13199 1 i915 joydev 17393 0 snd_rawmidi 25424 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi bcma 25587 1 b43 ssb 55319 1 b43 snd_seq 51592 2 snd_seq_midi,snd_seq_midi_event uvcvideo 67203 0 apple_gmux 12655 0 videodev 86588 1 uvcvideo applesmc 18978 0 bcm5974 17199 0 input_polldev 13648 1 applesmc pcmcia 39826 2 b43,ssb snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq mei 36570 0 video 19115 2 i915,apple_gmux apple_bl 13425 0 pcmcia_core 21511 1 pcmcia mac_hid 13077 0 snd 62218 16 snd_hda_codec_hdmi,snd_hda_codec_cirrus,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device soundcore 14635 1 snd btusb 17919 1 snd_page_alloc 14115 2 snd_hda_intel,snd_pcm bluetooth 164387 13 rfcomm,bnep,btusb lp 17455 0 parport 40930 3 parport_pc,ppdev,lp hid_apple 13166 0 usbhid 41937 0 hid 77428 2 hid_apple,usbhid firewire_ohci 40180 0 firewire_core 56940 1 firewire_ohci crc_itu_t 12627 1 firewire_core tg3 137318 0 sdhci_pci 18324 0 sdhci 28241 1 sdhci_pci

Code:

0: hci0: Bluetooth Soft blocked: yes Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no

i assume lspci -nn | egrep '0200|0280' will be the same

Re: BCM4331 problems

Hi, thanks for unblocking that..
ok lets see if we can get you going...
please do..

Code:

sudo apt-get install linux-firmware-nonfree sudo modprobe -r b43 sudo modprobe b43

*IF it continues to drop out after this
see next post.
thanks.

Re: BCM4331 problems

your card is b/g/n and a broadcom,
for whatever reason broadcom and linux dont always
function correctly at N speeds. so.... you can perhaps
disable the N part in your router, providing you dont have
other computers using N speed. another possible fix is to
issue this command towards your wifi card.

Code:

sudo modprobe -r b43 sudo modprobe b43 nohwcrypt=1

hope this helps.