Salut Xubu,
J'avais déjà désactivé le sécure-boot ayant vu que ça pouvait poser problème.
Merci pour ton aide.
En complément j'ai utilisé le script wificheck et voici ce que ça donne:
>> 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 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 064e:c33c Suyin Corp.
Bus 001 Device 002: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0 for Bluetooth
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
03:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n [14e4:4365] (rev 01)
DeviceName: Broadcom BCM43142 802.11bgn 1x1 WiFi Adapter + BT 4.0 combo adapter
Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:2230]
Kernel modules: wl
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast Ethernet controller [10ec:8136] (rev 08)
DeviceName: Realtek PCIe FE Family Controller
Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:2340]
Kernel driver in use: r8169
Kernel modules: r8169
>> sudo lshw -C network
*-network NON-RÉCLAMÉ
description: Network controller
produit: BCM43142 802.11b/g/n
fabriquant: Broadcom Limited
identifiant matériel: 0
information bus: pci@0000:03:00.0
version: 01
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list
configuration: latency=0
ressources: mémoire:c1100000-c1107fff
*-network
description: Ethernet interface
produit: RTL8101/2/6E PCI Express Fast Ethernet controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:04:00.0
nom logique: eno1
version: 08
numéro de série: 3c:a8:2a:a1:75:e8
taille: 100Mbit/s
capacité: 100Mbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8106e-2_0.0.1 04/23/13 ip=192.168.1.40 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
ressources: irq:23 portE/S:3000(taille=256) mémoire:c1004000-c1004fff mémoire:c1000000-c1003fff
>> lsmod
Module Size Used by
nls_iso8859_1 16384 1
wl 6447104 0
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm 593920 0
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
pcbc 16384 0
snd_hda_codec_hdmi 49152 1
aesni_intel 167936 0
snd_hda_codec_realtek 90112 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
glue_helper 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
intel_cstate 20480 0
intel_rapl_perf 16384 0
uvcvideo 90112 0
snd_hda_intel 36864 5
snd_hda_codec 126976 4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_core 81920 5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 102400 4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_core 40960 2 uvcvideo,videobuf2_v4l2
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
videodev 172032 3 uvcvideo,videobuf2_core,videobuf2_v4l2
media 40960 2 uvcvideo,videodev
snd_seq 65536 2 snd_seq_midi_event,snd_seq_midi
joydev 20480 0
input_leds 16384 0
mac_hid 16384 0
serio_raw 16384 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
cfg80211 602112 1 wl
snd_timer 32768 2 snd_seq,snd_pcm
lpc_ich 24576 0
rtsx_pci_ms 20480 0
memstick 16384 1 rtsx_pci_ms
snd 77824 21 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_pcm
shpchp 36864 0
mei_me 40960 0
mei 102400 1 mei_me
soundcore 16384 1 snd
ip6t_REJECT 16384 1
nf_reject_ipv6 16384 1 ip6t_REJECT
nf_log_ipv6 16384 5
xt_hl 16384 22
ip6t_rt 16384 3
nf_conntrack_ipv6 20480 8
nf_defrag_ipv6 36864 1 nf_conntrack_ipv6
ipt_REJECT 16384 1
nf_reject_ipv4 16384 1 ipt_REJECT
nf_log_ipv4 16384 5
nf_log_common 16384 2 nf_log_ipv6,nf_log_ipv4
xt_LOG 16384 10
xt_limit 16384 13
xt_tcpudp 16384 18
xt_addrtype 16384 4
nf_conntrack_ipv4 16384 8
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4
xt_conntrack 16384 16
ip6table_filter 16384 1
ip6_tables 28672 1 ip6table_filter
parport_pc 32768 0
nf_conntrack_netbios_ns 16384 0
nf_conntrack_broadcast 16384 1 nf_conntrack_netbios_ns
nf_nat_ftp 16384 0
nf_nat 28672 1 nf_nat_ftp
ppdev 20480 0
libcrc32c 16384 1 nf_nat
nf_conntrack_ftp 20480 1 nf_nat_ftp
nf_conntrack 131072 8 nf_conntrack_ipv6,nf_conntrack_ftp,nf_conntrack_ipv4,nf_conntrack_broadcast,nf_nat_ftp,nf_conntrack_netbios_ns,xt_conntrack,nf_nat
iptable_filter 16384 1
ip_tables 24576 1 iptable_filter
x_tables 36864 13 xt_LOG,ipt_REJECT,ip_tables,iptable_filter,xt_tcpudp,xt_limit,ip6t_REJECT,ip6table_filter,xt_addrtype,ip6t_rt,xt_conntrack,ip6_tables,xt_hl
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
autofs4 40960 2
hid_generic 16384 0
usbhid 53248 0
hid 118784 2 hid_generic,usbhid
i915 1449984 93
rtsx_pci_sdmmc 24576 0
video 40960 1 i915
i2c_algo_bit 16384 1 i915
drm_kms_helper 151552 1 i915
syscopyarea 16384 1 drm_kms_helper
psmouse 139264 0
ahci 36864 3
libahci 32768 1 ahci
r8169 81920 0
mii 16384 1 r8169
rtsx_pci 57344 2 rtsx_pci_sdmmc,rtsx_pci_ms
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 352256 5 i915,drm_kms_helper
>> iwconfig
>> ifconfig -a
eno1 Link encap:Ethernet HWaddr 3c:a8:2a:a1:75:e8
inet adr:192.168.1.40 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::cd62:5b55:e202:a720/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:1344 erreurs:0 :0 overruns:0 frame:0
TX packets:1086 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:813254 (813.2 KB) Octets transmis:165830 (165.8 KB)
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:65536 Metric:1
Packets reçus:300 erreurs:0 :0 overruns:0 frame:0
TX packets:300 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:24024 (24.0 KB) Octets transmis:24024 (24.0 KB)
>> sudo iwlist scan
>> uname -r -m
4.10.0-42-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)
NOM UUID TYPE PÉRIPHÉRIQUE
Connexion filaire 1 75ce9d2b-4b9e-3a3e-b17b-58c13bc1ce7f 802-3-ethernet eno1
>> nmcli connection status
>> sudo rfkill list