Ok, after some new attempts I can file a report of what's going on. I tried again with a live session on a daily ubuntu image. By issuing manually inside a shell the command
sudo apt-get install bcmwl-kernel-source the wireless network is immediately recognised. So I decided to try this same command on my installed 14.04.1 system with the 3.16.0-25 kernel, but the package is already installed, and won't istall again. Then I tried this: sudo apt-get --reinstall install bcmwl-kernel-source after this the wireless network does NOT work. Instead, the command also broke my working network with 3.13.0-40 kernel!!! Besides, the command sudo modprobe wl gives: "no such module" In an attempt to fix my wireless network within the 3.13 kernel I reinstalled the bcmwl package again. The command was issued under the old kernel this time, and this is the result: Loading new bcmwl-6.30.223.141+bdcom DKMS files... Building for 3.13.0-40-generic and 3.16.0-25-generic Building for architecture x86_64 Building initial module for 3.13.0-40-generic Done. wl: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.13.0-40-generic/updates/dkms/ depmod...... DKMS: install completed. Building initial module for 3.16.0-25-generic Error! Bad return status for module build on kernel: 3.16.0-25-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.141+bdcom/build/make.log for more information. update-initramfs: deferring update (trigger activated) Elaborazione dei trigger per initramfs-tools (0.103ubuntu4.2)... I would stress the attention on this part: "........Error! Bad return status for module build on kernel:...." The wireless network works again under 3.13, but apparently, for some reason, the module is NOT built for the new kernel. So it seems that some compilation error is present. I attached the make.log file. ** Attachment added: "make.log" https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1397383/+attachment/4273614/+files/make.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1397383 Title: 14e4:4359 [Dell Latitude 5530] Broadcom BCM43228 WiFi interface not recognized with linux-generic-lts-utopic 3.16.0-25 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1397383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs