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1) lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04

2) apt-cache policy broadcom-sta-source
broadcom-sta-source:
  Installed: 6.30.223.141-1
  Candidate: 6.30.223.141-1
  Version table:
 *** 6.30.223.141-1 0
        500 http://se.archive.ubuntu.com/ubuntu/ trusty/multiverse amd64 Packages
        100 /var/lib/dpkg/status

3) What is expected to happen with my Asus 1225B-SIV047M laptop and
DLINK DIR-645 AP is the WiFi works via the broadcom-sta-source driver.

4) What happened instead: Almost nothing. There is a valid ARP entry for
the AP in the ARP cache, but there are no replies from ping. The same
problem existed in 13.10 with this computer about a month ago. However,
this computer has been able to use the AP w/o problems running 12.04
until about six months ago, when no longer connect to it. I tried
upgrading the AP firmware to 1.04 B12 but this didn't change anything.

I have two Android devices of different versions using the AP without
problems.

However, the wifi works with an AP from Huawei.

uname -a
Linux slim2a 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

lspci -vvnn | grep -A 9 Network
04:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)
 Subsystem: AzureWave Device [1a3b:2047]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 17
 Region 0: Memory at fea00000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: wl

sudo dmidecode -s bios-version
209
sudo dmidecode -s bios-release-date
06/05/2012

** Affects: bcmwl (Ubuntu)
     Importance: Medium
         Status: Fix Released


** Tags: amd64 latest-bios-209 saucy trusty
-- 
14e4:4727 [Asus 1225B] BCM4313 not working with D-Link DIR-645 AP
https://bugs.launchpad.net/bugs/1289746
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