Merci pour cet rapide aide !
Voici
>> 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 004: ID 0bda:b00a Realtek Semiconductor Corp.
Bus 001 Device 003: ID 05c8:022a Cheng Uei Precision Industry Co., Ltd (Foxlink)
Bus 001 Device 002: ID 0438:7900 Advanced Micro Devices, Inc.
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 005: ID 12d1:108a Huawei Technologies Co., Ltd.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:831a]
Kernel driver in use: rtl8821ce
Kernel modules: 8821ce
>> sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: RTL8821CE 802.11ac PCIe Wireless Network Adapter
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:01:00.0
nom logique: wlp1s0
version: 00
numéro de série: ec:5c:68:4b:4a:c9
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8821ce latency=0 multicast=yes wireless=unassociated
ressources: irq:37 portE/S:e000(taille=256) mémoire:fea00000-fea0ffff
*-network
description: Ethernet interface
identifiant matériel: 2
nom logique: enp0s16u2
numéro de série: d6:ee:f5:2e:56:22
fonctionnalités: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.89 link=yes multicast=yes
>> lsmod | sort
8821ce 1794048 0
acpi_tad 16384 0
aesni_intel 372736 2
aes_x86_64 20480 1 aesni_intel
ahci 40960 2
amdgpu 3522560 30
amd_iommu_v2 20480 1 amdgpu
autofs4 45056 2
bluetooth 557056 33 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 24576 2
btbcm 16384 1 btusb
btintel 24576 1 btusb
btrtl 20480 1 btusb
btusb 49152 0
ccp 86016 0
cdc_ether 20480 1 rndis_host
cfg80211 679936 1 8821ce
chash 16384 1 amdgpu
cmac 16384 1
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
crypto_simd 16384 1 aesni_intel
drm 483328 20 gpu_sched,drm_kms_helper,amdgpu,ttm
drm_kms_helper 180224 1 amdgpu
ecdh_generic 28672 2 bluetooth
edac_mce_amd 28672 0
fam15h_power 16384 0
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
glue_helper 16384 1 aesni_intel
gpu_sched 32768 1 amdgpu
hid 126976 3 i2c_hid,hid_multitouch,hid_generic
hid_generic 16384 0
hid_multitouch 28672 0
hp_wireless 16384 0
hp_wmi 16384 0
i2c_algo_bit 16384 1 amdgpu
i2c_hid 28672 0
i2c_piix4 28672 0
input_leds 16384 0
ip_tables 32768 0
irqbypass 16384 1 kvm
isofs 49152 0
joydev 28672 0
k10temp 16384 0
kvm 647168 0
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_realtek
libahci 32768 1 ahci
lp 20480 0
mac_hid 16384 0
media 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mii 16384 1 usbnet
Module Size Used by
nls_iso8859_1 16384 1
nls_utf8 16384 0
parport 53248 3 parport_pc,lp,ppdev
parport_pc 36864 0
ppdev 24576 0
rfcomm 77824 4
rfkill_gpio 16384 0
rndis_host 20480 0
sch_fq_codel 20480 6
serio_raw 20480 0
snd 86016 27 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 135168 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 49152 8
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 hp_wmi
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ttm 102400 1 amdgpu
uas 24576 0
usbnet 45056 2 rndis_host,cdc_ether
usb_storage 69632 1 uas
uvcvideo 94208 0
video 49152 0
videobuf2_common 45056 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 204800 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi 28672 2 hp_wmi,wmi_bmof
wmi_bmof 16384 0
x_tables 40960 1 ip_tables
>> iwconfig
wlp1s0 unassociated Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency=2.412 GHz Access Point: Not-Associated
Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=0/100 Signal level=0 dBm Noise level=0 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>> ifconfig -a
>> sudo iwlist scan
wlp1s0 Scan completed :
Cell 01 - Address: 84:A1:D1:43:1B:80
ESSID:"MonWifiNiqueTonCerveau"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f202
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Extra:
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD800050F204104A0001101044000102103B0001031047001032E7D38776935052D8A850784ED169A81021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D415010080002200C103C0001011049000600372A000120
Quality=100/100 Signal level=-69 dBm
Extra:fm=0003
Cell 02 - Address: E0:A1:D7:EB:A0:F4
ESSID:"SFR_A0F0"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1c0050f20101000050f20202000050f2040050f20201000050f2020c00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Quality=99/100 Signal level=-79 dBm
Extra:fm=0003
Cell 03 - Address: 82:A1:D7:EB:A0:F5
ESSID:"SFR WiFi FON"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:off
Bit Rates:144 Mb/s
Quality=96/100 Signal level=-78 dBm
Extra:fm=0003
Cell 04 - Address: 82:A1:D7:EB:A0:F7
ESSID:"SFR WiFi Mobile"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:144 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac010c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : 802.1x
Quality=100/100 Signal level=-82 dBm
Extra:fm=0003
Cell 05 - Address: A4:3E:51:2D:3F:AF
ESSID:"Livebox-TD"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Extra:
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD8F0050F204104A0001101044000102103B00010310470010493C3B4D3D39FA4CFB4E494E493C3B4D10210008536167656D636F6D10230016536167656D636F6D46617374333936355F4C42322E381024000C53475F4C42335F312E322E3110420009414E313831373846461054000800060050F204000110110000100800020006103C0001011049000600372A000120
Quality=95/100 Signal level=-86 dBm
Extra:fm=0003
Cell 06 - Address: 8C:F8:13:2E:57:52
ESSID:"Livebox-5752"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Extra:
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD1D0050F204104A0001101044000102103C0001011049000600372A000120
Quality=100/100 Signal level=-88 dBm
Extra:fm=0001
Cell 07 - Address: B6:8D:E7:FD:96:50
ESSID:"freebox_camille"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:300 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Quality=36/100 Signal level=-73 dBm
Extra:fm=0003
Cell 08 - Address: B6:8D:E7:FD:96:52
ESSID:"FreeWifi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:off
Bit Rates:300 Mb/s
Quality=36/100 Signal level=-70 dBm
Extra:fm=0003
Cell 09 - Address: B6:8D:E7:FD:96:53
ESSID:"FreeWifi_secure"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:300 Mb/s
Extra:wpa_ie=dd160050f20101000050f20401000050f20401000050f201
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : 802.1x
Quality=48/100 Signal level=-70 dBm
Extra:fm=0003
Cell 10 - Address: B6:8D:E7:FD:96:51
ESSID:""
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:300 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=-70 dBm
Extra:fm=0001
Cell 11 - Address: 82:95:04:C7:1B:7F
ESSID:"SFR WiFi Mobile"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:144 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac010c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : 802.1x
Quality=36/100 Signal level=-75 dBm
Extra:fm=0003
Cell 12 - Address: 24:95:04:C7:1B:7C
ESSID:"SFR_1B78"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1c0050f20101000050f20202000050f2040050f20201000050f2020c00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Quality=17/100 Signal level=-73 dBm
Extra:fm=0001
Cell 13 - Address: 82:95:04:C7:1B:7D
ESSID:"SFR WiFi FON"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:off
Bit Rates:144 Mb/s
Quality=36/100 Signal level=-75 dBm
Extra:fm=0003
>> uname -r -m
5.0.0-37-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
MonWifiNiqueTonCerveau Infra 1 130 Mbit/s 54 ▂▄__ WPA1 WPA2
FreeWifi_secure Infra 11 270 Mbit/s 54 ▂▄__ WPA1 802.1X
freebox_camille Infra 11 270 Mbit/s 50 ▂▄__ WPA1
FreeWifi Infra 11 270 Mbit/s 50 ▂▄__ --
SFR WiFi Mobile Infra 11 130 Mbit/s 50 ▂▄__ WPA2 802.1X
-- Infra 11 270 Mbit/s 47 ▂▄__ WPA2
SFR_1B78 Infra 11 130 Mbit/s 47 ▂▄__ WPA1
SFR WiFi FON Infra 11 130 Mbit/s 40 ▂▄__ --
SFR WiFi FON Infra 1 130 Mbit/s 37 ▂▄__ --
SFR WiFi Mobile Infra 1 130 Mbit/s 30 ▂___ WPA2 802.1X
SFR_A0F0 Infra 1 130 Mbit/s 30 ▂___ WPA1
Livebox-TD Infra 6 130 Mbit/s 24 ▂___ WPA1 WPA2
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Connexion filaire 1 e571bfff-8524-36c3-8dae-05bf233a16e3 ethernet enp0s16u2
Freebox-556094 687eea55-f52b-4e55-893c-5d7bcc53d9cb wifi --
>> nmcli connection status
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
