Wireless network is not detected, says Disconnected - you are offline on start. This has started happening only after I updated Ubuntu 14.04 through Software Updater.
I did try with downgrading libnl those 3 files to 302.21-1 but no use. I tried with sudo services network-manager restart but no use.
Tried with uninstalling and reinstalling driver but no use.
I also tried with Advance recovery but no use.
Please help with this issue.
shaukat@shk-Inspiron-1545:~$ lspci -knn|grep Net -A2
0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
shaukat@shk-Inspiron-1545:~$ grep b43 /etc/modprobe.d/*
/etc/modprobe.d/blacklist-bcm43.conf:blacklist b43
/etc/modprobe.d/blacklist-bcm43.conf:blacklist b43legacy
/etc/modprobe.d/blacklist.conf:# replaced by b43 and ssb.
shaukat@shk-Inspiron-1545:~$
Regards, SHK
lspci -knn | grep Net -A2
terminal command.