0

Ubuntu 14.04.3 not accessing internet traffic when Wi-Fi signal is at 2 bars of strength or less. It connects to the router/modem combo, but no web pages can be downloaded in any browser (or any network traffic it seems). Windows 7 can access internet fine on same hardware and low signal strength. Problem disappears when signal strength is 3 bars or higher.

Output of lspci -knn | grep Net -A2 command is:

05:00.0 Network controller [0280]: Broadcom Corporation BCM43224 802.11a/b/g/n [14e4:4353] (rev 01)
    Subsystem: Dell Wireless 1520 Half-size Mini PCIe Card [1028:000e]
    Kernel driver in use: bcma-pci-bridge
--
0b:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe [14e4:1698] (rev 10)
    Subsystem: Dell Device [1028:02fe]
    Kernel driver in use: tg3

Could it be driver related?

Pilot6
  • 92,041
Gavitor
  • 1
  • 2

2 Answers2

0

According to b43 driver wiki this adapter is supported by b43 driver.

You can install firmware for this adapter by running

sudo apt-get install firmware-b43-installer

And you can activate b43 driver by

sudo modprobe -r brcmsmac bcma
sudo modprobe b43

After that lspci -k | grep 0280 -A2 should show b43 as Kernel driver in use.

If this driver works better, then I will add how to make it permanent.

Pilot6
  • 92,041
-3

I had a similar issue with my BCM4313, and it was due to the drivers in use ( bcma-pci-bridge, same as you ). The solution was to install the official drivers, bcmwl-kernel-source. You can find them on the repositories.

For more information check out this page: https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx It may help you.

rodri
  • 1