Wednesday, March 2, 2016

networking - broadcom 4312 card. cant find any wireless network



I switched my computer over to Ubuntu from Windows, big mistake. I cant get my wireless to work. I scan wlan0 and a bunch of other things that I copied and pasted from the internet. I have no idea if my wireless card is working or not? I tried to manually create the connection by typing in my routers ssid and wpa2 key, the little wireless icon in the upper right looked like it was looking for the router.



No matter what I scan for in the terminal I get interface does not support scanning.
any advice?



Edit for grimpitch:




0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at f69fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [58] Vendor Specific Information: Len=78
Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [13c] Virtual Channel

Capabilities: [160] Device Serial Number 07-cf-5f-ff-ff-62-00-22
Capabilities: [16c] Power Budgeting
Kernel driver in use: wl


output from iwconfig:
eth0 no wireless extensions.



eth1 IEEE 802.11abg ESSID:off/any
Mode:Managed Access Point: Not-Associated
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off




lo no wireless extensions.



lspci:
0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at f69fc000 (64-bit, non-prefetchable) [size=16K]
Capabilities:
Kernel driver in use: wl




thanks grimpitch. your help and a youtube video showing me that i had to change bios on my model dell after switching to linux got it.



Install the firmware for this type of card.



Execute in a terminal:



 sudo apt-get install firmware-b43-lpphy-installer

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