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glombard/setup-wifi.sh

Created July 22, 2014 18:57
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Install wifi drivers for Ubuntu / Lubuntu 14.04 on Acer Aspire 5755G (Broadcom BCM43227 network controller)
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setup-wifi.sh
# Determine wireless device model (manufacturer 14e4 for Broadcom):
lspci -vvnn | grep 14e4
# Install Broadcom STA driver for BCM43227:
sudo apt-get update
sudo apt-get install --reinstall linux-headers-generic build-essential dkms bcmwl-kernel-source
sudo modprobe -r b43 ssb wl brcmfmac brcmsmac bcma
sudo modprobe wl
# Connect (press Fn+F3 to enable wifi if necessary first):
sudo ifconfig wlan0 up
sudo iwlist wlan0 scanning
sudo iwconfig wlan0 essid MYSSID key s:MyWifiPwd
sudo dhclient wlan0
# Troubleshooting commands:
iwconfig
nm-tool
rfkill list
sudo lshw -C network
@NpDen4ik
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Thanks a lot

@HughLin1986
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Thank you!

@loco-mad
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loco-mad commented Oct 6, 2020 •
edited
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Until the 6th step everything went right, but then all where error messages...

$ sudo ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device

But suddenly the green led of my wi-fi device started to run and my laptop started to recognize the wi-fi's around me!

Great job! Thank you very much.

@fixubuntuwifiproblem
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Read the following:
https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx

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