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Computer "sees" wireless APs but won't connect. MBP 7.1, Kubuntu 14.04. BCM4322

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Hi all,

I originally posted this to AkUbuntu but haven't really gotten any help (don't know how active it is), so I'm posting it here. Not a new user so please don't think I"m a "hit & run" guy. I don't know why my username was "reset."

Anyway, if you'll please forgive me for the copy/paste:

I desperately need some help (maybe not desperately, but this is frustrating!). I have a Macbook Pro 7.1 with a Broadcom BCM4322 wireless card. I have tried, and tried, and tried to get it working but it refuses to cooperate. I've searched here and nothing I've found works. Currently I have loaded bcmwl-kernel-source (as you will see in the pastebin link) but that doesn't work. The most interesting thing is that I got it to work with no problems on Lubuntu 14.04 using firmware-b43-installer.
Here's what I've tried (repeatedly):

  • bcmwl-kernel-source
  • b43-fwcutter & firmware-b43-installer
  • linux-firmware-nonfree

I've tried each individually, and various combinations of the three (I know that won't work, but I thought just maybe).
Anyway, I ran the wireless-info script and the output is here.
Thank you so, so much for your help!
Quick specs:

  • Kubuntu 14.04 (3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux)
  • Broadcom BCM4322
  • Even tried wicd instead of network-manager (didn't help)

EDIT: reinstalled linux-firmware-nonfree and now the computer scans for wireless networks, but does not connect. Posted new output of wireless-info. Maybe the following is important:
[ 657.716057] wlan0: authenticate with
[ 657.744251] wlan0: send auth to (try 1/3)
[ 657.746953] wlan0: authenticated
[ 662.752366] wlan0: deauthenticating from by local choice (reason=3)

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