在Ubuntu 16.04上與Broadcom BCM43142的連接緩慢


1

我最近已切換到Ubuntu 16.04,但我的無線連接有問題。我正在使用Broadcom BCM43142無線網卡並使用Broadcom 802.11 Linux STA驅動程序。

無線連接始終以低信號顯示。有時它可以足夠的速度工作,但是大多數情況下連接速度很慢(比在我有雙引導分區的Windows上慢得多)。

我嘗試卸載/重新安裝驅動程序。我也已經嘗試禁用IPv6,並且還嘗試使dahi修復無效。

我已經運行以下無線腳本,這是輸出

http://pastebin.com/BU5ZZJcY

0

You can try to install a newer driver by running

sudo apt purge bcmwl-kernel-source
sudo apt install broadcom-sta-dkms

It helps to improve speed on some Broadcom chipsets.


0

I was with the same problem and found this https://ubuntuforums.org/showthread.php?t=2175345. Here the guy had a problem because the hardware encrypting. The solution given was change the driver parameter do disable it through modprobe... "nohwcrypt=1"

Knowing that the problem is with the encryption algorithm, searching a little bit more, https://ubuntuforums.org/showthread.php?t=2162616, some guy solved the problem with something more easier and faster. He changed the wireless security setting to

"pure WPA2-PSK (AES). No mixed mode, no TKIP"

So I did it and it's working with full speed again. However, the price is lowering the Internet security, be advised.


0

I also experienced the same problem for years in my hp laptop.The problem was not with the software but the hardware. My laptops wlan card was having only one black colored antenna usually other laptops has 2 antenna wires.My laptop was having a different form factored(smaller) wlan card. so what i did was simply disconnect the antenna from one slot of the card and placed in the antenna slot(has one wire but 2 slots on the card). please remove your laptops case and check if yours is also the same case.


3

In Debian 9 I used:

sudo apt install broadcom-sta-dkms

and it did the whole trick for my hp ProBook6570b laptop. I was getting a near 20Mbits/s before. I ran the command and rebooted the laptop for a clean start. After this all of a sudden I saw a 180Mbits/s

I am happy!