Broadcom B4311 b/g

[cheif]

I am having a similar issue with this as well...
this is what i get from that command

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lspci -nnk | grep -iA2 net
09:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM5755M Gigabit Ethernet PCI Express [14e4:1673] (rev 02)
	Subsystem: Dell NetXtreme BCM5755M Gigabit Ethernet PCI Express [1028:01fe]
	Kernel driver in use: tg3
	Kernel modules: tg3
0c:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11a/b/g [14e4:4312] (rev 01)
	Subsystem: Dell Wireless 1490 Dual Band WLAN Mini-Card [1028:0007]
	Kernel driver in use: wl

[JeremyB]

That isn't the best module, so in terminal

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sudo apt-get remove bcmwl-kernel-source broadcom-sta-common broadcom-sta-dkms

If you have a connection via ethernet then do

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sudo apt-get install firmware-b43-installer

Reboot

[cheif]

ok that is done. what now?

[JeremyB]

Unplug the ethernet and see if wifi works

[cheif]

No wifi...could this be a power issue?

[Mons1]

What happens if you execute:

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sudo modprobe b43

Will it start Wifi? The b43 is the OpenSource kernel-module for b43xx.
I did exactly the same because i also have the B4311 b/g.
The problem is that the proprietary broadcom-wl put b43 in backlist so you need to execute modprobe after reboot.
Maybe b43 can be removed from blacklist?

[JeremyB]

Uninstalling the bcmwl-kernel-source and other packages should remove the blacklists unless one was manually added, you can check for other blacklists with

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grep [[:alnum;]] /etc/modprobe.d/* | grep ssb

As instructions found on the internet often suggest this be blacklisted

[cheif]

That worked! Wifi is up and running. Thank you for your help.