Comment 4 for bug 875892

pc: acer one 522
problem: wireless unstable --> repeatedly (3-4 times) connects for 5-6 sec then out of the blue disconnects.

sudo ifconfig
eth0 Link encap:Ethernet HWaddr 1c:75:08:de:da:a0
          inet addr:192.168.2.17 Bcast:192.168.2.255 Mask:255.255.255.0
          inet6 addr: fe80::1e75:8ff:fede:daa0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:3202 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1165 errors:0 dropped:0 overruns:0 carrier:1
          collisions:0 txqueuelen:1000
          RX bytes:1231201 (1.2 MB) TX bytes:162721 (162.7 KB)
          Interrupt:41

eth1 Link encap:Ethernet HWaddr ec:55:f9:24:47:97
          inet6 addr: fe80::ee55:f9ff:fe24:4797/64 Scope:Link
          UP BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:6992
          TX packets:122 errors:23 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:28845 (28.8 KB)
          Interrupt:19

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:160 errors:0 dropped:0 overruns:0 frame:0
          TX packets:160 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:12208 (12.2 KB) TX bytes:12208 (12.2 KB)

sudo iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

eth1 IEEE 802.11 ESSID:""
          Mode:Managed Frequency:2.427 GHz Access Point: Not-Associated
          Bit Rate:72 Mb/s Tx-Power:24 dBm
          Retry min limit:7 RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=5/5 Signal level=0 dBm Noise level=-86 dBm
          Rx invalid nwid:0 Rx invalid crypt:106 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

sudo iwlist eth1 scan
eth1 Scan completed :
          Cell 01 - Address: 00:26:50:B3:59:69
                    ESSID:"BELL864"
                    Mode:Managed
                    Frequency=2.427 GHz (Channel 4)
                    Quality:5/5 Signal level:-24 dBm Noise level:-89 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s

connection file shows the ssid scanned as well as the proper keys.

lspci -k -nn -d 14e4:4727
07:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
 Subsystem: Broadcom Corporation Device [14e4:0510]
 Kernel driver in use: wl
 Kernel modules: wl, bcma, brcmsmac

wifi light is ON

/etc/udev/rules.d/70-persistent-net.rules

# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.

# PCI device 0x1969:0x2062 (atl1c)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="1c:75:08:de:da:a0", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

# PCI device 0x14e4:0x4727 (brcmsmac)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ec:55:f9:24:47:97", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

# PCI device 0x14e4:0x4727 (wl)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ec:55:f9:24:47:97", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

question pls : are last 2 rules for same device and address and different kernel module ok ?

brcmsmac module is not used. lsmod lists only wl module.