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#1 2008-12-13 04:22:33

intrados
Member
Registered: 2008-08-01
Posts: 12

Wireless Not Finding Networks

My Broadcom wireless (05:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)) worked well for quite a while until recently. As far as I know, I didn't make any system changes but I am no longer able to detect wireless networks. I am physically close to the router and other computers can connect to it.
I run "sudo modprobe -a b43 mac80211 cfg80211" and "sudo ifconfig wlan0 up" with no complaint but when I do "sudo iwlist wlan0 scan", it tells me that there are no scan results despite the presence of a network. Any suggestions?

Last edited by intrados (2008-12-13 05:14:00)

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#2 2008-12-13 05:32:42

firecat53
Member
From: Lake Stevens, WA, USA
Registered: 2007-05-14
Posts: 1,542
Website

Re: Wireless Not Finding Networks

Can you test that the card itself works . . . like with a Windows dual boot, or with an Ubuntu or Arch or other live CD? I have the 4311 in my HP dv6000 and it works fine with the b43 driver. You could also try the wl driver from Broadcom (broadcom-wl in the AUR).  Make sure that another wireless driver isn't loaded at the same time (ndiswrapper, wl, bcm43xx). . . that's bitten me before when booting some live CDs or forgetting to add an entry to the modprobe blacklist.

Good luck!
Scott

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#3 2008-12-13 07:45:28

ichbinesderelch
Member
Registered: 2008-01-17
Posts: 203

Re: Wireless Not Finding Networks

maybe try using ndiswrapper with bcm43 windows driver, i never had luck with the b43 one.. just to find out if the card still works!

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#4 2008-12-13 11:29:24

intrados
Member
Registered: 2008-08-01
Posts: 12

Re: Wireless Not Finding Networks

After trying ndiswrapper (no luck) and testing in a Live CD (same problem with iwlist scan), I am now of the opinion that my wireless card is no longer working. Is there something I can do to test/confirm this?

Last edited by intrados (2008-12-13 11:31:57)

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