View Full Version : [ubuntu] b43legacy signal issues

Vengeful Cynic
July 4th, 2009, 01:26 AM
I've got an old Dell Inspiron 1000 with a PCMCIA Dell-Branded b/g wireless card in it with a Broadcom BCM4306 chipset. I can get wireless 100% of the time when the laptop is near the router, but even with the laptop right next to the router, it reports 66% signal at best.

Move the laptop into another room and I'm lucky if I can raise the router long enough to ping google. The hardware works fine throughout the house in Windows with the same network on the same channel, so I'm guessing I have a configuration issue or perhaps a driver issue.

This is a clean Ubuntu install with minor changes, only using the B43legacy wireless driver for wireless (I haven't touched ndiswrapper.)

Some pre-emptive information dumping from what I've read on the forums follows:

from iwconfig:

wlan0 IEEE 802.11bg ESSID:"scholl"
Mode:Managed Frequency:2.412 GHz Access Point: 00:16:B6:EB:54:AF
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Power Management:off
Link Quality=66/100 Signal level:-51 dBm Noise level=-73 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

from lspci:

02:00.0 Network controller: Broadcom Corporation BCM4306 802.11b/g Wireless LAN Controller (rev 02)

from lspci -n:

02:00.0 0280: 14e4:4320 (rev 02)

from lshw -C network

WARNING: you should run this program as super-user.
description: Network controller
product: BCM4306 802.11b/g Wireless LAN Controller
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:02:00.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=b43-pci-bridge latency=64 module=ssb
description: Wireless interface
physical id: 1
logical name: wlan0
serial: 00:10:c6:44:13:16
capabilities: ethernet physical wireless
configuration: broadcast=yes ip= multicast=yes wireless=IEEE

Suggestions would be much obliged.


Vengeful Cynic
July 8th, 2009, 04:31 AM
I know it's usually in poor form to respond to one's own post but I really would like someone to have a look at this.