In a forum where I partecipate we solved the problem. We found that the problem is caused about a file called "blacklist-bcm43.conf" that put all the broadcom driver in blacklist after the installation (that no happened during live cd session). This is the cause of the issue.
You have to move this file from /etc/modprobe.d and reboot, later network card works fine. This is the content of /etc/modprobe.d/blacklist-bcm43.conf *** paola@paola-Inspiron-1520:/etc/modprobe.d$ cat blacklist-bcm43.conf # Warning: This file is autogenerated by bcmwl. All changes to this file will be lost. blacklist b43 blacklist b43legacy blacklist ssb blacklist bcm43xx blacklist brcm80211 blacklist brcmfmac blacklist brcmsmac blacklist bcma blacklist b44 install wl modprobe -r b43 b44 b43legacy ssb; modprobe --ignore-install wl ; modprobe --ignore-install b44 *** Can see that all broadcom are blacklisted. I solved moving this file to Desktop and after a reboot the network card works fine. >From terminal I used command "mv" to move the file to Desktop: *** paola@paola-Inspiron-1520:~$ sudo mv /etc/modprobe.d/blacklist-bcm43.conf /home/paola/Scrivania *** And after a reboot the network card works. We talk about this problem on this thread: http://www.linux-magazine.it/forum/index.php/topic,15933.msg53955.html#msg53955 but it's only in italian, I'm sorry. I hope that solution works for other people that have this problem. I dont know how this thread works, but if is possible someone report this solution and what is the problem to whom it may concern. Thank you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1113779 Title: 14e4:170c Broadcom bcm4401-b0 network card no longer functional To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1113779/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
