Bonjour Xubu,
Toutes mes excuses, étant assez novice je ne connais pas les basiques !
Wifi Check:
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
>> lsusb
Bus 002 Device 002: ID 8087:8001 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8009 Intel Corp.
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 005: ID 046d:085c Logitech, Inc.
Bus 003 Device 004: ID 1ea7:2002
Bus 003 Device 003: ID 258a:1007
Bus 003 Device 002: ID 0951:16a4 Kingston Technology
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
Subsystem: Micro-Star International Co., Ltd. [MSI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1462:7850]
Kernel driver in use: r8169
Kernel modules: r8169
04:00.0 PCI bridge [0604]: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge [1b21:1080] (rev 03)
--
06:00.0 Network controller [0280]: Ralink corp. RT3090 Wireless 802.11n 1T/1R PCIe [1814:3090]
Subsystem: Ralink corp. RT3090 Wireless 802.11n 1T/1R PCIe [1814:3090]
Kernel driver in use: rt2800pci
Kernel modules: rt2800pci
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: enp3s0
version: 0c
numéro de série: 4c:cc:6a:00:13:bc
taille: 10Mbit/s
capacité: 1Gbit/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 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
ressources: irq:17 portE/S:d000(taille=256) mémoire:f7200000-f7200fff mémoire:f2100000-f2103fff
*-network
description: Interface réseau sans fil
produit: RT3090 Wireless 802.11n 1T/1R PCIe
fabriquant: Ralink corp.
identifiant matériel: 0
information bus: pci@0000:06:00.0
nom logique: wlp6s0
version: 00
numéro de série: 44:33:4c:06:30:84
bits: 32 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rt2800pci driverversion=4.15.0-45-generic firmware=0.40 ip=192.168.1.151 latency=0 link=yes multicast=yes wireless=IEEE 802.11
ressources: irq:19 mémoire:f7100000-f710ffff
>> lsmod
Module Size Used by
ccm 20480 9
nls_iso8859_1 16384 1
snd_hda_codec_hdmi 49152 1
arc4 16384 2
rt2800pci 16384 0
rt2800mmio 16384 1 rt2800pci
rt2800lib 114688 2 rt2800mmio,rt2800pci
rt2x00pci 16384 1 rt2800pci
rt2x00mmio 16384 2 rt2800mmio,rt2800pci
rt2x00lib 53248 5 rt2x00mmio,rt2x00pci,rt2800mmio,rt2800pci,rt2800lib
mxm_wmi 16384 0
uvcvideo 86016 0
mac80211 778240 3 rt2x00pci,rt2x00lib,rt2800lib
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_core 40960 2 videobuf2_v4l2,uvcvideo
videodev 184320 3 videobuf2_core,videobuf2_v4l2,uvcvideo
cfg80211 622592 2 rt2x00lib,mac80211
input_leds 16384 0
intel_rapl 20480 0
media 40960 2 videodev,uvcvideo
joydev 24576 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
snd_usb_audio 204800 7
snd_usbmidi_lib 32768 1 snd_usb_audio
kvm_intel 212992 0
kvm 598016 1 kvm_intel
snd_hda_codec_realtek 106496 1
irqbypass 16384 1 kvm
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
eeprom_93cx6 16384 1 rt2800pci
snd_hda_intel 40960 7
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
snd_hda_codec 126976 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 2 snd_seq_midi,snd_usbmidi_lib
pcbc 16384 0
snd_hda_core 81920 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 20480 2 snd_usb_audio,snd_hda_codec
aesni_intel 188416 6
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
snd_seq 65536 2 snd_seq_midi,snd_seq_midi_event
snd_pcm 98304 6 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
glue_helper 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
intel_cstate 20480 0
snd_timer 32768 2 snd_seq,snd_pcm
lpc_ich 24576 0
intel_rapl_perf 16384 0
nvidia_uvm 757760 0
mei_me 40960 0
mei 90112 1 mei_me
snd 81920 40 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
shpchp 36864 0
soundcore 16384 1 snd
acpi_pad 180224 0
wmi 24576 1 mxm_wmi
mac_hid 16384 0
sch_fq_codel 20480 6
parport_pc 36864 1
ppdev 20480 0
lp 20480 0
parport 49152 3 parport_pc,lp,ppdev
ip_tables 28672 0
x_tables 40960 1 ip_tables
autofs4 40960 2
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 usbhid,hid_generic
nvidia_drm 40960 2
nvidia_modeset 1110016 31 nvidia_drm
nvidia 14360576 1461 nvidia_uvm,nvidia_modeset
drm_kms_helper 172032 1 nvidia_drm
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 401408 5 drm_kms_helper,nvidia_drm
ahci 40960 4
r8169 86016 0
ipmi_devintf 20480 0
libahci 32768 1 ahci
mii 16384 1 r8169
ipmi_msghandler 53248 2 ipmi_devintf,nvidia
video 45056 0
>> iwconfig
wlp6s0 IEEE 802.11 ESSID:"loft 2"
Mode:Managed Frequency:2.437 GHz Access Point: 00:24:36:A6:E2:4D
Bit Rate=6.5 Mb/s Tx-Power=20 dBm
Retry short long limit:2 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=55/70 Signal level=-55 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:93 Invalid misc:691 Missed beacon:0
>> ifconfig -a
enp3s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 4c:cc:6a:00:13:bc 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
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 1210625678 bytes 105680547081 (105.6 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1210625678 bytes 105680547081 (105.6 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.151 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 2a01:cb08:62d:2e00:856f:cc53:985:cd41 prefixlen 64 scopeid 0x0<global>
inet6 fe80::49df:f8f3:6410:1957 prefixlen 64 scopeid 0x20<link>
inet6 2a01:cb08:62d:2e00:2899:eb4d:c1ce:6fcb prefixlen 64 scopeid 0x0<global>
ether 44:33:4c:06:30:84 txqueuelen 1000 (Ethernet)
RX packets 17573164 bytes 24893588465 (24.8 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13402591 bytes 1240629542 (1.2 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>> sudo iwlist scan
>> uname -r -m
4.15.0-45-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
* loft 2 Infra 6 130 Mo/s 67 ▂▄▆_ WPA2
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
loft 2 e3bb1008-5b32-4ce0-b8ab-1e7fc90b8a4d wifi wlp6s0
Connexion filaire 1 fb2361df-2ca8-3fd0-80cf-7b7ddbecac7e ethernet --
Livebox-0B4F 05d9ccc7-7cbf-4882-b052-6499a36dc72d wifi --
devolo-f4068d0777ca d64b95d1-d9f1-4455-84bd-ebab559bba3d wifi --
loft 2 1 6d83041a-45fd-4529-b8f2-f805471b786f wifi --
loft 2 1 ea7b93a8-b36c-488f-be49-52d184d4947d wifi --
loft 2 1 da575c0a-284f-4f13-a2cc-fd61ae0372d6 wifi --
loft3 269d4612-9508-4e30-ad3a-f545f48942a9 wifi --
loft3 1 032eae1e-9255-42d2-b72d-48e3563a7ab5 wifi --
>> nmcli connection status
>> sudo rfkill list