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I'm trying to run an old netbook with Broadcom BCM4313 wireless as a print server with Ubuntu Server 12.04. Setting up the wireless without the GUI, however, is proving problematic. I do think however I've narrowed down the problem.

I've tried both the wl driver (from bcmwl-kernel-source) as well as the (included) brcmsmac driver. With both of them, when I issue the command iwlist wlan0 scanning (eth1 for wl), I only see neighbouring networks- not my own.

I believe this might be because my networks are n-only, but my neighbouring networks are mixed mode (I suspect this because the output of iwlist wlan0 scanning shows "Bit Rates" only as high as 54 Mb/s).

Any ideas how to go about getting this thing to connect?

KJ Tsanaktsidis
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    Hi, my BCM4313 had the same problem last week. Turns out it doesn't pick up any networks on channels 12+. I lowered the network to channel 5 and now she's working. – beanaroo Oct 28 '12 at 11:20
  • I just saw that post actually- you're right! Many thanks. I'll go upvote your other post... – KJ Tsanaktsidis Oct 28 '12 at 11:31
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    Actually, the post I'm referring to isn't yours: http://askubuntu.com/questions/202689/how-to-connect-to-my-own-wifi-using-broadcom-sta-drivers – KJ Tsanaktsidis Oct 28 '12 at 11:32
  • how did you even get any result with the wl driver for BCM4313? mine says eth1 Interface doesn't support scanning. – Ubuntuser Jan 17 '13 at 06:25
  • I'm not sure, it was a while ago :/ I installed it somehow from the bcmwl-kernel-source package – KJ Tsanaktsidis Jan 21 '13 at 00:26

2 Answers2

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Set your network to mix mode, should fix it up. I had the same problem.

Peachy
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Themes kreen stone
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Disregard me, I'm stupid. The very next thing I looked up on this site claimed that it doesn't support channels > 11, and my wlan was on ch13! Changing this to 11, connection worked a charm with the wl driver, like so:

wpa_passphrase mySSID myPSK >> /etc/wpa_supplicant.conf

iwconfig eth1 essid mySSID

wpa_supplicant -D wext -i eth1 -c /etc/wpa_supplicant.conf

dhclient eth1

KJ Tsanaktsidis
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