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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?

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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: askubuntu.com/questions/202689/… –  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 6:25
    
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 0:26
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2 Answers 2

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

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up vote 0 down vote accepted

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

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Glad you came right! Remember to mark the question as answered if all's well :) –  beanaroo Oct 28 '12 at 11:40
    
Can't do it for two days... I'll try and remember! –  KJ Tsanaktsidis Oct 28 '12 at 22:39
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