Comment 14 for bug 1572659

Richard (rvandieren) wrote :

Experienced the same. WIFI no longer working after upgrading on Dell XPS 13 9343 to Ubuntu 16.04 LTS.

SecureBoot is enabled (and will remain so)

lspci -nnk | grep 0280 -A2
02:00.0 Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
 Subsystem: Dell BCM4352 802.11ac Wireless Network Adapter [1028:0019]
 Kernel modules: bcma, wl

sudo lshw -C network
  *-network UNCLAIMED
       description: Network controller
       product: BCM4352 802.11ac Wireless Network Adapter
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       version: 03
       <snip>