I have installed Ubuntu 16.04 on my old laptop,but I can't make wireless connection
sudo ifconfig wlp3s0 up
mm@6830s:~$ sudo iwlist wlp3s0 scan
wlp3s0 Interface doesn't support scanning : Invalid argument
Everything seems to be 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
My 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
If I go for
sudo iw dev wlp3s0 scan
command failed: Invalid argument (-22)
How to solve this issue?