Ubuntu cannot find my network after disconnect

[dimitars]

Hey guys. Let me try to explain the problem.

Whenever my laptop shuts down because of battery, or if we loose power, of the router is restarted for some reason, my laptop cannot find my wireless. It finds other wireless networks just fine, but mine it can not.

I have d-link router(I don't think it is router's fault cause on windows it works just fine for me and 3 other roommates).

I have:

01:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe [14e4:1692] (rev 01)
02:00.0 Network controller [0280]: Broadcom Corporation BCM43225 802.11b/g/n [14e4:4357] (rev 01)

Till today(since 11.10) I was able to fix this somehow with several repeats of : Disable Network then Enable Network.. sometimes restart and it was somehow working aggain.

But today I can't. I spent 2 hours doing that and restarts, and iwlist scanning and just can't find my network(which still works just fine on windows machines).

I have Broadcom STA proprietary driver activated.

Please help me fix this problem. 2 years I've been dealing with this.

[gerowen]

Have you tried using a different program to connect to it like Wifi Radar? You could also try deleting the network profile for your wireless and reconnecting as if it's the first time again.

[dimitars]

Have you tried using a different program to connect to it like Wifi Radar? You could also try deleting the network profile for your wireless and reconnecting as if it's the first time again.

Ah i forgot to mention, i tried both of those things.
Although for radar i knew it wouldn't work because iwlist scan wasn't showing my network either.

[Hadaka]

Hi, please post the output of...

lsmod | grep -E 'brcmsmac|bcma'

grep 'blacklist' /etc/modprobe.d/blacklist.conf

thanks

[dimitars]

Here it is:

deemeetar@deemeetar:~$ grep 'blacklist' /etc/modprobe.d/blacklist.conf
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
deemeetar@deemeetar:~$ lsmod | grep -E 'brcmsmac|bcma'
deemeetar@deemeetar:~$

[Hadaka]

ok, nothing jumping out there, please post..

lspci -nnk | grep -A4 Wireless

cat /etc/modules

[dimitars]

# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.

lp

The other one is empty.

Looks like nothing here too

[Hadaka]

exactly..and there should be..
but first..you forgot to post..

lspci -nnk | grep -A4 Wireless

[dimitars]

It doesn't print anything.

[Hadaka]

empty?..thats your wireless card lspci dump..hmmm
try this

lspci -nnk |grep -iA5 net