Instalei o Ubuntu 16.04 no meu laptop antigo, mas não consigo fazer conexão sem fio
sudo ifconfig wlp3s0 up
mm@6830s:~$ sudo iwlist wlp3s0 scan
wlp3s0 Interface doesn't support scanning : Invalid argument
Tudo parece estar ok
sudo lshw -class network
*-network
description: Wireless interface
product: BCM4312 802.11b/g LP-PHY
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: 00:21:00:b2:16:48
width: 64 bits
Minha interface
cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto ens5
iface ens5 inet dhcp
auto wlp3s0
iface wlp3s0 inet dhcp
Se eu for para
sudo iw dev wlp3s0 scan
command failed: Invalid argument (-22)
Como resolver esse problema?
Tags networking wifi ubuntu