Merci des infos, voici le résultat de wificheck :
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.3 LTS"
>> lsusb
Bus 001 Device 005: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
Bus 001 Device 004: ID 1bcf:2b8d Sunplus Innovation Technology Inc.
Bus 001 Device 003: ID 8087:0a2a Intel Corp.
Bus 001 Device 002: ID 8087:8001 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (3) I218-LM [8086:15a2] (rev 03)
Subsystem: Dell Ethernet Connection (3) I218-LM [1028:062d]
Kernel driver in use: e1000e
Kernel modules: e1000e
00:1b.0 Audio device [0403]: Intel Corporation Wildcat Point-LP High Definition Audio Controller [8086:9ca0] (rev 03)
--
02:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a] (rev 59)
Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5410]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: Ethernet Connection (3) I218-LM
fabriquant: Intel Corporation
identifiant matériel: 19
information bus: pci@0000:00:19.0
nom logique: eno1
version: 03
numéro de série: f8:ca:b8:16:f8:c7
taille: 1Gbit/s
capacité: 1Gbit/s
bits: 32 bits
horloge: 33MHz
fonctionnalités: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.2-3 ip=192.168.1.55 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
ressources: irq:47 mémoire:f7200000-f721ffff mémoire:f7243000-f7243fff portE/S:f080(taille=32)
*-network DÉSACTIVÉ
description: Interface réseau sans fil
produit: Wireless 7265
fabriquant: Intel Corporation
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlp2s0
version: 59
numéro de série: 18:5e:0f:29:9e:c4
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.0.0-27-generic firmware=29.1044073957.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
ressources: irq:49 mémoire:f7000000-f7001fff
>> lsmod | sort
8021q 32768 0
acpi_pad 184320 0
acpi_thermal_rel 16384 1 int3400_thermal
aesni_intel 372736 2
aes_x86_64 20480 1 aesni_intel
ahci 40960 1
arc4 16384 2
autofs4 45056 2
bluetooth 557056 45 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 24576 2
bpfilter 24576 0
btbcm 16384 1 btusb
btintel 24576 1 btusb
btrtl 20480 1 btusb
btusb 49152 0
cfg80211 675840 3 iwlmvm,iwlwifi,mac80211
cmac 16384 1
coretemp 20480 0
cqhci 28672 1 sdhci_pci
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
crypto_simd 16384 1 aesni_intel
dcdbas 20480 1 dell_smbios
dell_laptop 20480 0
dell_smbios 28672 2 dell_wmi,dell_laptop
dell_smm_hwmon 16384 0
dell_wmi 20480 0
dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios
drm 479232 5 drm_kms_helper,i915
drm_kms_helper 180224 1 i915
e1000e 245760 0
ecdh_generic 28672 2 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
garp 16384 1 8021q
ghash_clmulni_intel 16384 0
glue_helper 16384 1 aesni_intel
i2c_algo_bit 16384 1 i915
i915 1818624 4
input_leds 16384 0
int3400_thermal 20480 0
int3402_thermal 16384 0
int3403_thermal 16384 0
int340x_thermal_zone 16384 3 int3403_thermal,int3402_thermal,processor_thermal_device
intel_cstate 20480 0
intel_powerclamp 20480 0
intel_rapl 24576 0
intel_rapl_perf 16384 0
intel_soc_dts_iosf 20480 1 processor_thermal_device
iptable_filter 16384 0
iptable_mangle 16384 0
iptable_nat 16384 0
ip_tables 32768 3 iptable_filter,iptable_nat,iptable_mangle
irqbypass 16384 1 kvm
iwlmvm 385024 0
iwlwifi 311296 1 iwlmvm
joydev 28672 0
kvm 626688 2 kvmgt,kvm_intel
kvmgt 28672 0
kvm_intel 237568 0
ledtrig_audio 16384 3 snd_hda_codec_generic,snd_hda_codec_realtek,dell_laptop
libahci 32768 1 ahci
libcrc32c 16384 2 nf_conntrack,nf_nat
llc 16384 2 stp,garp
lp 20480 0
lpc_ich 24576 0
mac80211 815104 1 iwlmvm
mac_hid 16384 0
mdev 24576 2 kvmgt,vfio_mdev
media 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei 102400 1 mei_me
mei_me 40960 0
Module Size Used by
mrp 20480 1 8021q
nf_conntrack 135168 2 nf_nat,nf_nat_ipv4
nf_defrag_ipv4 16384 1 nf_conntrack
nf_defrag_ipv6 24576 1 nf_conntrack
nf_nat 36864 1 nf_nat_ipv4
nf_nat_ipv4 16384 1 iptable_nat
parport 53248 3 parport_pc,lp,ppdev
parport_pc 36864 0
ppdev 24576 0
processor_thermal_device 20480 0
psmouse 151552 0
rfcomm 77824 16
sch_fq_codel 20480 2
sdhci 57344 1 sdhci_pci
sdhci_pci 45056 0
serio_raw 20480 0
snd 86016 19 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
snd_hda_codec 131072 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 53248 1
snd_hda_codec_realtek 114688 1
snd_hda_core 86016 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel 40960 4
snd_hwdep 20480 1 snd_hda_codec
snd_pcm 102400 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_rawmidi 36864 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_timer 36864 2 snd_seq,snd_pcm
soundcore 16384 1 snd
sparse_keymap 16384 1 dell_wmi
stp 16384 1 garp
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
uvcvideo 94208 0
vfio 32768 3 kvmgt,vfio_mdev,vfio_iommu_type1
vfio_iommu_type1 28672 0
vfio_mdev 16384 0
video 49152 3 dell_wmi,dell_laptop,i915
videobuf2_common 45056 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 200704 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi 28672 4 dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
wmi_bmof 16384 0
x86_pkg_temp_thermal 20480 0
x_tables 40960 3 iptable_filter,ip_tables,iptable_mangle
>> iwconfig
wlp2s0 IEEE 802.11 ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
>> ifconfig -a
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.55 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 2a02:8429:81c7:ee01:9b70:509f:312c:5659 prefixlen 64 scopeid 0x0<global>
inet6 fe80::4e38:11a6:5f6e:a414 prefixlen 64 scopeid 0x20<link>
inet6 2a02:8429:81c7:ee01:3d54:4c2f:5761:4db0 prefixlen 64 scopeid 0x0<global>
ether f8:ca:b8:16:f8:c7 txqueuelen 1000 (Ethernet)
RX packets 2207 bytes 1950097 (1.9 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1816 bytes 244661 (244.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 20 memory 0xf7200000-f7220000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Boucle locale)
RX packets 504 bytes 54269 (54.2 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 504 bytes 54269 (54.2 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp2s0: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 18:5e:0f:29:9e:c4 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>> sudo iwlist scan
>> uname -r -m
5.0.0-27-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
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Connexion filaire 1 1aa3addc-4138-3f5b-8f55-f0e7e845005a ethernet eno1
Connexion Wi-Fi 1 efe9b7d5-d219-432f-982c-2370037dad0f wifi --
SFR_CCA8 fc84f7b4-da37-4e43-86dc-a77b8884e14f wifi --
SFR_CCA8_5GHZ 7bcf3988-2016-4a55-8ff6-35a53ddfde0a wifi --
>> nmcli connection status
>> sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes
1: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
2: dell-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no