Bonjour à tous.tes.
Je me décide à poster une demande d'aide car après plusieurs heures de recherches et de tentatives de manip' je n'arrive toujours pas à résoudre mon problème. Pourtant ce ne sont pas les posts qui manquent sur la carte rtl8723be !
En deux mots mon souci : depuis (il me semble) une mise à jour je capte beaucoup moins bien le réseau wifi, je suis obligé de me rapprocher de la box pour avoir un signal suffisant pour naviguer, pas très pratiques chez moi vu que la box est chez mes voisins ! ! (on a mis en commun l'accès internet 😉 )
Voici le wificheck, peut-être vous pourrez identifier mieux que moi ce qui dysfonctionne....
Merci merci !
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.5 LTS"
>> lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f2:b49f Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 174f:1169 Syntek
Bus 001 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. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 0a)
Subsystem: Lenovo RTL810xE PCI Express Fast Ethernet controller [17aa:3830]
Kernel driver in use: r8169
Kernel modules: r8169
04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
Subsystem: XAVi Technologies Corp. RTL8723BE PCIe Wireless Network Adapter [1b9a:2485]
Kernel driver in use: rtl8723be
Kernel modules: rtl8723be
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: RTL810xE PCI Express Fast Ethernet controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: enp3s0
version: 0a
numéro de série: f0:76:1c:ed:ba:88
capacité: 100Mbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8107e-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII
ressources: irq:18 portE/S:2000(taille=256) mémoire:90504000-90504fff mémoire:90500000-90503fff
*-network
description: Interface réseau sans fil
produit: RTL8723BE PCIe Wireless Network Adapter
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:04:00.0
nom logique: wlp4s0
version: 00
numéro de série: 4c:bb:58:cc:33:d7
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8723be driverversion=5.4.0-42-generic firmware=N/A ip=192.168.1.32 latency=0 link=yes multicast=yes wireless=IEEE 802.11
ressources: irq:19 portE/S:1000(taille=256) mémoire:90400000-90403fff
>> lsmod | sort
acpi_thermal_rel 16384 1 int3400_thermal
ahci 40960 2
autofs4 45056 2
bluetooth 573440 30 btrtl,btqca,btintel,hci_uart,btbcm,bnep,btusb
bnep 24576 2
btbcm 16384 2 hci_uart,btusb
btcoexist 147456 1 rtl8723be
btintel 24576 2 hci_uart,btusb
btqca 20480 1 hci_uart
btrtl 20480 2 hci_uart,btusb
btusb 57344 0
ccm 20480 6
cfg80211 712704 2 rtlwifi,mac80211
cmac 16384 1
coretemp 20480 0
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 1 ghash_clmulni_intel
drm 491520 5 drm_kms_helper,i915
drm_kms_helper 184320 1 i915
ecc 32768 1 ecdh_generic
ecdh_generic 16384 2 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
hci_uart 122880 0
hid 126976 1 i2c_hid
i2c_algo_bit 16384 1 i915
i2c_hid 28672 0
i915 1978368 4
input_leds 16384 0
int3400_thermal 20480 0
int3403_thermal 16384 0
int340x_thermal_zone 16384 2 int3403_thermal,processor_thermal_device
intel_cstate 20480 0
intel_powerclamp 20480 0
intel_rapl_common 24576 2 intel_rapl_msr,processor_thermal_device
intel_rapl_msr 20480 0
intel_soc_dts_iosf 20480 2 intel_soc_dts_thermal,processor_thermal_device
intel_soc_dts_thermal 20480 0
ip_tables 32768 0
joydev 28672 0
kvm 655360 0
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_realtek
libahci 32768 1 ahci
libarc4 16384 1 mac80211
lp 20480 0
lpc_ich 24576 0
mac80211 851968 3 rtl_pci,rtl8723be,rtlwifi
mac_hid 16384 0
mc 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei 102400 3 mei_hdcp,mei_txe
mei_hdcp 24576 0
mei_txe 24576 1
memstick 20480 1 rtsx_pci_ms
Module Size Used by
nls_iso8859_1 16384 1
parport 53248 3 parport_pc,lp,ppdev
parport_pc 40960 0
ppdev 24576 0
processor_thermal_device 24576 0
psmouse 151552 0
punit_atom_debug 16384 0
r8169 90112 0
realtek 24576 1
rfkill_gpio 16384 0
rtl8723be 98304 0
rtl8723_common 24576 1 rtl8723be
rtl_pci 28672 1 rtl8723be
rtlwifi 90112 4 rtl_pci,rtl8723be,btcoexist,rtl8723_common
rtsx_pci 73728 2 rtsx_pci_sdmmc,rtsx_pci_ms
rtsx_pci_ms 24576 0
rtsx_pci_sdmmc 28672 0
sch_fq_codel 20480 6
serio_raw 20480 0
snd 86016 14 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm
snd_hda_codec 131072 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 61440 1
snd_hda_codec_realtek 122880 1
snd_hda_core 90112 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel 49152 3
snd_hwdep 20480 1 snd_hda_codec
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_pcm 102400 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_timer 36864 1 snd_pcm
soundcore 16384 1 snd
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
uvcvideo 94208 0
video 49152 1 i915
videobuf2_common 53248 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 217088 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi 32768 1 wmi_bmof
wmi_bmof 16384 0
x_tables 40960 1 ip_tables
>> iwconfig
wlp4s0 IEEE 802.11 ESSID:"Livebox-B776"
Mode:Managed Frequency:2.462 GHz Access Point: 00:CB:51:8B:D2:E4
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=36/70 Signal level=-74 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:18 Missed beacon:0
>> ifconfig -a
>> sudo iwlist scan
wlp4s0 Scan completed :
Cell 01 - Address: 00:CB:51:8B:D2:E4
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=46/70 Signal level=-64 dBm
Encryption key:on
ESSID:"Livebox-B776"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000075277519
Extra: Last beacon: 36ms ago
IE: Unknown: 000C4C697665626F782D42373736
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 0706465220010D14
IE: Unknown: 2A0104
IE: Unknown: 32040C121860
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 0B0502000E0000
IE: Unknown: 2D1AAD0117FFFFFF0000000000000000000000000000000000000000
IE: Unknown: 3D160B080400000000000000000000000000000000000000
IE: Unknown: 7F080400000000000040
IE: Unknown: DD970050F204104A0001101044000102103B00010310470010303043423531F842F43245343030434210210008536167656D636F6D10230015536167656D636F6D46617374353336305F4D4942341024000C53475F4C42345F312E322E30104200094E51313930323146461054000800060050F2040001101100094C697665626F782034100800020006103C0001011049000600372A000120
IE: Unknown: DD090010180202101C0000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 02 - Address: 58:EF:68:B3:A1:4E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=44/70 Signal level=-66 dBm
Encryption key:on
ESSID:"wifi-Camerail1"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=00000800d3c18180
Extra: Last beacon: 3840ms ago
IE: Unknown: 000E776966692D43616D657261696C31
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 050400010008
IE: Unknown: 0706444520010D11
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Preauthentication Supported
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAD0103FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1601080400000000000000000000000000000000000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
Cell 03 - Address: 00:CB:51:8B:D2:E5
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=30/70 Signal level=-80 dBm
Encryption key:off
ESSID:"orange"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000000752783f5
Extra: Last beacon: 36ms ago
IE: Unknown: 00066F72616E6765
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 0706465220010D14
IE: Unknown: 2A0104
IE: Unknown: 32040C121860
IE: Unknown: 0B0500000E0000
IE: Unknown: 2D1AAD0117FFFFFF0000000000000000000000000000000000000000
IE: Unknown: 3D160B080400000000000000000000000000000000000000
IE: Unknown: 7F080400000000000040
IE: Unknown: DD090010180200101C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
>> uname -r -m
5.4.0-42-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
IN-USE SSID MODE CHAN RATE SIGNAL BARS SECURITY
wifi-Camerail1 Infra 1 130 Mbit/s 57 ▂▄▆_ WPA1 WPA2
* Livebox-B776 Infra 11 195 Mbit/s 44 ▂▄__ WPA2
orange Infra 11 195 Mbit/s 40 ▂▄__ --
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Livebox-B776 1 52dad65f-21ad-469e-b9b4-67cd701b258c wifi wlp4s0
Connexion filaire 1 1457495c-2a34-3869-b742-89bb19ab52e1 ethernet --
LesArgonautes 3da8163f-fc0b-41ba-bdb9-09e4f4bc4d57 wifi --
Livebox-1B02 e329f4cf-7b48-4255-a243-f1c4e34eb446 wifi --
Livebox-9454 06cd6cfd-5134-4931-ab0a-da35cad23667 wifi --
NOKIA Lumia 625_0967 37ac0924-0cae-48b6-b998-94a0b8685b69 wifi --
UrsaMinor 0e41afba-eb26-4179-9df0-0293e8e7081b wifi --
_SNCF_WIFI_INTERCITES eaa68754-bb4b-496a-9f40-9d5f5f7cb0dc wifi --
orange 834b7531-3b00-4d84-9633-26dda8a75552 wifi --
wifi-Camerail1 82f5c9c8-a94c-4c11-9007-4863a1a9837c 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