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Wifi bas débit RTL8723BE

Benji8891

Super, je commente car pour moi ce Tuto à résolu mon problème.

Merci à tous.

Thibaut51

Bonjour, récemment passé sous Ubuntu mate 18.04 mon problème de wifi est de nouveau apparue et la solution précédemment cité ne fonctionne plus.

Thibaut51

Sur mon ordinateur le réseau est incroyablement lent apparament je serai à 12ko/s de Connexion

Thibaut51

Cependant j'ai l'impression que le wifi n'est pas fixe, tout les 12 minutes environ aucun wifi n'est disponible et 12 minutes après il ce connect à mon wifi et ce cycle est infini. Ce problème est bien entendu uniquement sur mon PC (sous dual boot Windows et Ubuntu) sous windows le problème wifi est inexistant

xubu1957

Bonjour,

Vu au #12 :

nmcli dev wifi
*  SSID         MODE   CHAN  DÉBIT    SIGNAL  BARS  SÉCURITÉ 
*  *********  Infra  6     54 Mo/s  40      ▂▄__  WPA1

Il faudrait déjà passer sur un chiffrement WPA2 seul, comme indiqué au § 1 > [Tuto] Pas de Wi-fi ? Eléments importants à vérifier.

et ensuite, donner :

iwconfig

uname -r -m

nmcli dev wifi

_ _ _

Pour le réglage d'antenne :

Some newer HP laptops use only one antenna with the rtl8723be, the following code should help you set the ant_sel parameter to the correct antenna
Certains ordinateurs portables HP récents utilisent une seule antenne avec le rtl8723be, le code suivant devrait vous aider à régler le paramètre ant_sel sur l'antenne correcte

sudo modprobe -r rtl8723be

sudo modprobe rtl8723be ant_sel=1

iwlist scan | egrep -i 'ssid|quality'

Then we check the second option to find which one works better
Ensuite, nous vérifions la deuxième option pour trouver celle qui fonctionne le mieux

sudo modprobe -r rtl8723be

sudo modprobe rtl8723be ant_sel=2

iwlist scan | egrep -i 'ssid|quality'

If ant_sel=1 is better
Si ant_sel = 1 est meilleure

echo "options rtl8723be ant_sel=1" | sudo tee -a /etc/modprobe.d/rtl8723be.conf

If ant_sel=2 is better
Si ant_sel = 2 est meilleure

echo "options rtl8723be ant_sel=2" | sudo tee -a /etc/modprobe.d/rtl8723be.conf

> solved> realtek RTL8723BE PCIe Wifi adapter not working

Thibaut51

Bonjour, j'ai finalement installer ubuntu UNITY 18.04 sur le site http://ubuntu-fr.org, mais le même problème apparais. Les commande précédaient indiquer:
sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=2
N'ont plus aucun effet. Cependant cette commande:
iwlist scan | egrep -i 'ssid|quality'
me retourne:
enp0s20u3 Interface doesn't support scanning.

enp2s0 Interface doesn't support scanning.

lo Interface doesn't support scanning.

xubu1957

Bonjour,

Il faut redonner, en te servant du Retour utilisable de commande, un [doc]wificheck[/doc] rassemblant les informations > Configuration wifi.

Nota : un fichier wificheck.log est créé dans votre répertoire personnel, collez l'intégralité de son contenu dans votre discussion.

cqfd93 a écritAstuce pour copier / coller sans erreur :

triple clic gauche pour sélectionner et copier une ligne entière

clic molette pour coller dans le terminal

Thibaut51

[b]cat /etc/lsb-release:[/b]
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04 LTS"

[b]lsusb:[/b]
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 04f2:b50c Chicony Electronics Co., Ltd 
Bus 001 Device 005: ID 0bda:b006 Realtek Semiconductor Corp. 
Bus 001 Device 004: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 003: ID 1c4f:0034 SiGma Micro 
Bus 001 Device 002: ID 0483:91d1 STMicroelectronics Sensor Hub
Bus 001 Device 008: ID 0e79:5469 Archos, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

[b]lspci:[/b]
00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 21)
00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21)
00:0b.0 Signal processing controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller (rev 21)
00:13.0 SATA controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SATA Controller (rev 21)
00:14.0 USB controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller (rev 21)
00:1a.0 Encryption controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine (rev 21)
00:1b.0 Audio device: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller (rev 21)
00:1c.0 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 (rev 21)
00:1c.1 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #2 (rev 21)
00:1c.2 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #3 (rev 21)
00:1c.3 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #4 (rev 21)
00:1f.0 ISA bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU (rev 21)
00:1f.3 SMBus: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller (rev 21)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)

[b]lspci -k -nn | grep -A 3 -i net[/b]
libkmod: ERROR ../libkmod/libkmod-config.c:656 kmod_config_parse: /etc/modprobe.d/iwlwifi.conf line 8: ignoring bad line starting with '“options'
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
	Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller [103c:8074]
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
	Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]
	Kernel driver in use: rtl8723be
	Kernel modules: rtl8723be
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)


[b]lspci -k[/b]
00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register
	Kernel driver in use: iosf_mbi_pci
libkmod: ERROR ../libkmod/libkmod-config.c:656 kmod_config_parse: /etc/modprobe.d/iwlwifi.conf line 8: ignoring bad line starting with '“options'
00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller
	Kernel driver in use: i915
	Kernel modules: i915
00:0b.0 Signal processing controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller
	Kernel driver in use: proc_thermal
	Kernel modules: processor_thermal_device
00:13.0 SATA controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SATA Controller (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SATA Controller
	Kernel driver in use: ahci
	Kernel modules: ahci
00:14.0 USB controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller
	Kernel driver in use: xhci_hcd
00:1a.0 Encryption controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine
	Kernel driver in use: mei_txe
	Kernel modules: mei_txe
00:1b.0 Audio device: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 (rev 21)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #2 (rev 21)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #3 (rev 21)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #4 (rev 21)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1f.0 ISA bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.3 SMBus: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller (rev 21)
	Subsystem: Hewlett-Packard Company Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller
	Kernel modules: i2c_i801
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
	Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
	Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter
	Kernel driver in use: rtl8723be
	Kernel modules: rtl8723be
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
	Subsystem: Hewlett-Packard Company RTS5229 PCI Express Card Reader
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci

[b]sudo lshw -C network:[/b]
  *-network                 
       description: Ethernet interface
       produit: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:02:00.0
       nom logique: enp2s0
       version: 07
       numéro de série: ec:8e:b5:2f:86:c8
       taille: 10Mbit/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=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:118 portE/S:3000(taille=256) mémoire:91300000-91300fff mémoire:91000000-91003fff
  *-network
       description: Interface réseau sans fil
       produit: RTL8723BE PCIe Wireless Network Adapter
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:03:00.0
       nom logique: wlp3s0
       version: 00
       numéro de série: 94:53:30:2a:a0:63
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8723be driverversion=4.15.0-20-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
       ressources: irq:18 portE/S:2000(taille=256) mémoire:91200000-91203fff
  *-network
       description: Ethernet interface
       identifiant matériel: 3
       nom logique: enp0s20u1
       numéro de série: 0e:e5:53:ac:23:17
       fonctionnalités: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.146 link=yes multicast=yes

Thibaut51

lsmod:
Module                  Size  Used by
rndis_host             16384  0
cdc_ether              16384  1 rndis_host
usbnet                 45056  2 rndis_host,cdc_ether
rfcomm                 77824  16
cmac                   16384  1
bnep                   20480  2
nls_iso8859_1          16384  1
intel_rapl             20480  0
intel_powerclamp       16384  0
coretemp               16384  0
arc4                   16384  2
snd_hda_codec_hdmi     49152  1
kvm                   593920  0
irqbypass              16384  1 kvm
rtl8723be              98304  0
punit_atom_debug       16384  0
hid_sensor_incl_3d     16384  0
hid_sensor_rotation    16384  0
hid_sensor_magn_3d     16384  1
crct10dif_pclmul       16384  0
btcoexist             131072  1 rtl8723be
hid_sensor_gyro_3d     16384  0
crc32_pclmul           16384  0
hid_sensor_accel_3d    16384  1
hid_sensor_trigger     16384  10 hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_gyro_3d,hid_sensor_rotation
rtl8723_common         24576  1 rtl8723be
industrialio_triggered_buffer    16384  5 hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_magn_3d,hid_sensor_gyro_3d,hid_sensor_rotation
kfifo_buf              16384  1 industrialio_triggered_buffer
ghash_clmulni_intel    16384  0
hid_sensor_iio_common    16384  6 hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_trigger,hid_sensor_magn_3d,hid_sensor_gyro_3d,hid_sensor_rotation
rtl_pci                32768  1 rtl8723be
snd_hda_codec_realtek   102400  1
snd_hda_codec_generic    73728  1 snd_hda_codec_realtek
uvcvideo               86016  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         24576  1 uvcvideo
videobuf2_core         40960  2 uvcvideo,videobuf2_v4l2
videodev              184320  3 uvcvideo,videobuf2_core,videobuf2_v4l2
pcbc                   16384  0
industrialio           69632  10 hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_trigger,hid_sensor_magn_3d,hid_sensor_gyro_3d,hid_sensor_rotation,industrialio_triggered_buffer,kfifo_buf
media                  40960  2 uvcvideo,videodev
rtlwifi                77824  4 rtl_pci,btcoexist,rtl8723_common,rtl8723be
snd_hda_intel          40960  5
aesni_intel           188416  2
aes_x86_64             20480  1 aesni_intel
rtsx_pci_ms            20480  0
memstick               16384  1 rtsx_pci_ms
crypto_simd            16384  1 aesni_intel
snd_hda_codec         126976  4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
mac80211              778240  3 rtl_pci,rtlwifi,rtl8723be
btusb                  45056  0
btrtl                  16384  1 btusb
cfg80211              622592  2 mac80211,rtlwifi
wmi_bmof               16384  0
snd_hda_core           81920  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
input_leds             16384  0
glue_helper            16384  1 aesni_intel
snd_hwdep              20480  1 snd_hda_codec
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel,aesni_intel
hp_wmi                 16384  0
joydev                 24576  0
hci_uart              106496  0
intel_cstate           20480  0
serio_raw              16384  0
btbcm                  16384  2 hci_uart,btusb
snd_pcm                98304  5 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi
snd_seq_midi           16384  0
btqca                  16384  1 hci_uart
hid_multitouch         20480  0
nxp_nci_i2c            16384  0
nxp_nci                16384  1 nxp_nci_i2c
btintel                16384  2 hci_uart,btusb
rfkill_gpio            16384  0
nci                    69632  2 nxp_nci,nxp_nci_i2c
bluetooth             548864  45 btrtl,hci_uart,btintel,btqca,bnep,btbcm,rfcomm,btusb
snd_seq_midi_event     16384  1 snd_seq_midi
dw_dmac                16384  0
hp_accel               28672  0
lis3lv02d              20480  1 hp_accel
intel_vbtn             16384  0
soc_button_array       16384  0
sparse_keymap          16384  2 intel_vbtn,hp_wmi
snd_rawmidi            32768  1 snd_seq_midi
dw_dmac_core           24576  1 dw_dmac
ecdh_generic           24576  2 bluetooth
input_polldev          16384  1 lis3lv02d
nfc                   114688  2 nxp_nci,nci
snd_seq                65536  2 snd_seq_midi_event,snd_seq_midi
int3400_thermal        16384  0
int3403_thermal        16384  0
processor_thermal_device    16384  0
intel_soc_dts_iosf     16384  1 processor_thermal_device
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              32768  2 snd_seq,snd_pcm
mei_txe                20480  0
int340x_thermal_zone    16384  2 int3403_thermal,processor_thermal_device
acpi_thermal_rel       16384  1 int3400_thermal
intel_int0002_vgpio    16384  1
hp_wireless            16384  0
mei                    90112  1 mei_txe
shpchp                 36864  0
tpm_crb                16384  0
lpc_ich                24576  0
pwm_lpss_platform      16384  0
pwm_lpss               16384  1 pwm_lpss_platform
snd                    81920  20 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
soundcore              16384  1 snd
mac_hid                16384  0
sch_fq_codel           20480  7
parport_pc             36864  0
ppdev                  20480  0
lp                     20480  0
parport                49152  3 lp,parport_pc,ppdev
ip_tables              28672  0
x_tables               40960  1 ip_tables
autofs4                40960  2
hid_sensor_custom      20480  0
hid_sensor_hub         20480  8 hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_iio_common,hid_sensor_trigger,hid_sensor_magn_3d,hid_sensor_gyro_3d,hid_sensor_rotation,hid_sensor_custom
hid_generic            16384  0
usbhid                 49152  0
i915                 1617920  3
rtsx_pci_sdmmc         24576  0
i2c_algo_bit           16384  1 i915
drm_kms_helper        167936  1 i915
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
psmouse               147456  0
fb_sys_fops            16384  1 drm_kms_helper
rtsx_pci               65536  2 rtsx_pci_sdmmc,rtsx_pci_ms
r8169                  86016  0
ahci                   36864  2
drm                   401408  4 i915,drm_kms_helper
mii                    16384  2 r8169,usbnet
libahci                32768  1 ahci
wmi                    24576  2 wmi_bmof,hp_wmi
i2c_hid                20480  0
hid                   118784  5 hid_sensor_hub,i2c_hid,hid_generic,usbhid,hid_multitouch
video                  40960  1 i915

iwconfig:
lo        no wireless extensions.

enp2s0    no wireless extensions.

wlp3s0    IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:on
          
enp0s20u1  no wireless extensions.


ifconfig -a:
enp0s20u1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.42.146  netmask 255.255.255.0  broadcast 192.168.42.255
        inet6 fe80::12b0:c28a:dba5:78c0  prefixlen 64  scopeid 0x20<link>
        ether 0e:e5:53:ac:23:17  txqueuelen 1000  (Ethernet)
        RX packets 522999  bytes 754525458 (754.5 MB)
        RX errors 4  dropped 0  overruns 0  frame 4
        TX packets 308226  bytes 36106075 (36.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp2s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether ec:8e:b5:2f:86:c8  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 3017  bytes 259085 (259.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3017  bytes 259085 (259.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 94:53:30:2a:a0:63  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:
lo        Interface doesn't support scanning.

enp2s0    Interface doesn't support scanning.

wlp3s0    No scan results

enp0s20u1  Interface doesn't support scanning.


:uname -r -m 
4.15.0-20-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 (commande introuvable)

sudo rfkill list:
0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no


nmcli connection show:
NAME                 UUID                                  TYPE      DEVICE    
Connexion filaire 2  49f3c792-0197-3dd0-84ff-d0c7567c1740  ethernet  enp0s20u1 
Connexion filaire 1  744943bf-ca3e-39b9-89d8-39e5195595a2  ethernet  --

xubu1957

Bonjour,

Quand tu as installé ta version 18.04, tu as désactivé le secure-boot ?

Donne le retour de :

sudo modprobe rtl8723be

Thibaut51

Bonjour:

sudo modprobe rtl8723be:
libkmod: ERROR ../libkmod/libkmod-config.c:656 kmod_config_parse: /etc/modprobe.d/iwlwifi.conf line 8: ignoring bad line starting with '“options'

Thibaut51

J'ai réussi a régler le problème avec:

sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=2

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