voilà j'ai fait le wificheck
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.3 LTS"
>> lsusb
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 04f2:b337 Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
02:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM57785 Gigabit Ethernet PCIe [14e4:16b5] (rev 10)
Subsystem: Acer Incorporated [ALI] NetLink BCM57785 Gigabit Ethernet PCIe [1025:0647]
Kernel driver in use: tg3
Kernel modules: tg3
02:00.1 SD Host controller [0805]: Broadcom Corporation BCM57765/57785 SDXC/MMC Card Reader [14e4:16bc] (rev 10)
--
03:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01)
Subsystem: Foxconn International, Inc. AR9462 Wireless Network Adapter [105b:e052]
>> sudo lshw -C network
*-network
description: Ethernet interface
product: NetLink BCM57785 Gigabit Ethernet PCIe
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0f0
version: 10
serial: 20:89:84:72:44:99
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi msix pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 duplex=full firmware=sb ip=192.168.1.86 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:16 memory:c0430000-c043ffff memory:c0440000-c044ffff memory:afb00000-afb007ff
*-network UNCLAIMED
description: Network controller
product: AR9462 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:c0500000-c057ffff memory:c0580000-c058ffff
>> lsmod
Module Size Used by
kvm_intel 208896 0
kvm 585728 1 kvm_intel
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
cryptd 24576 1 ghash_clmulni_intel
joydev 20480 0
input_leds 16384 0
serio_raw 16384 0
video 40960 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
autofs4 40960 2
psmouse 143360 0
ahci 36864 3
tg3 167936 0
libahci 32768 1 ahci
ptp 20480 1 tg3
pps_core 20480 1 ptp
>> iwconfig
>> ifconfig -a
enp2s0f0 Link encap:Ethernet HWaddr 20:89:84:72:44:99
inet addr:192.168.1.86 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::228c:c0b0:ee14:1aae/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2779 errors:0 dropped:0 overruns:0 frame:0
TX packets:2198 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2889702 (2.8 MB) TX bytes:547211 (547.2 KB)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:4028 errors:0 dropped:0 overruns:0 frame:0
TX packets:4028 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:299555 (299.5 KB) TX bytes:299555 (299.5 KB)
>> sudo iwlist scan
>> uname -r -m
4.13.0-32-generic x86_64
>> cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
>> nm-tool
>> nmcli dev wifi
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Auto Ethernet e075ff19-396d-4f7b-bed5-09cff52cde05 802-3-ethernet enp2s0f0
Bbox-7CCBE26E ac0aa09b-19f6-4329-98e3-ec927688bf57 802-11-wireless --
Rifos J7 7b8d84df-6d57-4e78-8deb-47b929f0ba08 802-11-wireless --
>> nmcli connection status
>> sudo rfkill list