no scan results

Description: Ubuntu 14.10
Release: 14.10

bcmwl-kernel-source:
  Installed: 6.30.223.248+bdcom-0ubuntu1
  Candidate: 6.30.223.248+bdcom-0ubuntu1
  Version table:
 *** 6.30.223.248+bdcom-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ utopic/restricted amd64 Packages
        100 /var/lib/dpkg/status

Expected result: find wifi networks

Observable result:
root@leghomeserver ~ # iwlist wlan0 scan
wlan0 No scan results

Some more details:
root@leghomeserver ~ # uname -a
Linux leghomeserver 3.16.0-29-generic #39-Ubuntu SMP Mon Dec 15 22:27:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

root@leghomeserver ~ # lspci |grep BCM
02:00.0 Network controller: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter (rev 03)