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#1 Le 16/01/2023, à 17:31

achille1017

Connexion wi-fi anormalement faible et instable

Bonjour à tous, ma connexion wi-fi a toujorus été plus ou moins instable mais depuis certain temps ce n'est plus acceptable. Je suis en dual boot Windows 10/ Ubuntu 20.04.5 LTS. La wi-fi fonctionne sans problème sur windows. J'ai désactivé le secure boot. J'ai également modifié le wifi.power-save à 2.
Voici les logs demandé :

>>    lsb_release -a

Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.5 LTS
Release:	20.04
Codename:	focal

>>    lsusb 

Bus 002 Device 002: ID 05e3:0732 Genesys Logic, Inc. All-in-One Cardreader
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 03f0:034a HP, Inc Elite Keyboard
Bus 001 Device 003: ID 046d:c08f Logitech, Inc. G403 HERO Gaming Mouse
Bus 001 Device 006: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

>>    lspci -k -nn | grep -A 3 -i net 

00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I219-V [8086:15b8]
	DeviceName: Onboard - Ethernet
	Subsystem: Micro-Star International Co., Ltd. [MSI] Ethernet Connection (2) I219-V [1462:7b61]
	Kernel driver in use: e1000e
	Kernel modules: e1000e
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
--
03:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
	Subsystem: ASUSTeK Computer Inc. BCM4352 802.11ac Wireless Network Adapter [1043:85ba]
	Kernel driver in use: wl
	Kernel modules: bcma, wl

>>    sudo lshw -C network 

  *-network
       description: Interface réseau sans fil
       produit: BCM4352 802.11ac Wireless Network Adapter
       fabricant: Broadcom Inc. and subsidiaries
       identifiant matériel: 0
       information bus: pci@0000:03:00.0
       nom logique: wlp3s0
       version: 03
       numéro de série: 2c:fd:a1:60:be:13
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration : broadcast=yes driver=wl0 driverversion=6.30.223.271 (r587334) ip=192.168.1.17 latency=0 multicast=yes wireless=IEEE 802.11
       ressources : irq:18 mémoire:df400000-df407fff mémoire:df200000-df3fffff
  *-network
       description: Ethernet interface
       produit: Ethernet Connection (2) I219-V
       fabricant: Intel Corporation
       identifiant matériel: 1f.6
       information bus: pci@0000:00:1f.6
       nom logique: eno1
       version: 00
       numéro de série: 30:9c:23:ac:4a:67
       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=5.15.0-58-generic firmware=0.8-4 latency=0 link=no multicast=yes port=twisted pair
       ressources : irq:123 mémoire:df100000-df11ffff
  *-network
       description: Ethernet interface
       identifiant matériel: 2
       information bus: usb@1:4
       nom logique: usb0
       numéro de série: ba:08:8b:d5:4c:63
       fonctionnalités: ethernet physical
       configuration : autonegotiation=off broadcast=yes driver=rndis_host driverversion=5.15.0-58-generic duplex=half firmware=RNDIS device ip=192.168.187.209 link=yes multicast=yes port=twisted pair

>>    lsmod | sort 

acpi_pad              184320  0
aesni_intel           376832  0
ahci                   45056  2
autofs4                49152  2
binfmt_misc            24576  1
cdc_acm                40960  0
cdc_ether              24576  1 rndis_host
cec                    61440  1 drm_kms_helper
cfg80211              970752  1 wl
coretemp               24576  0
crc32_pclmul           16384  0
crct10dif_pclmul       16384  1
cryptd                 24576  2 crypto_simd,ghash_clmulni_intel
crypto_simd            16384  1 aesni_intel
drm                   618496  13 drm_kms_helper,nvidia,nvidia_drm
drm_kms_helper        307200  1 nvidia_drm
e1000e                286720  0
ee1004                 20480  0
efi_pstore             16384  0
fb_sys_fops            16384  1 drm_kms_helper
ghash_clmulni_intel    16384  0
hid                   147456  2 usbhid,hid_generic
hid_generic            16384  0
i2c_i801               36864  0
i2c_smbus              20480  1 i2c_i801
input_leds             16384  0
intel_cstate           20480  0
intel_powerclamp       20480  0
intel_rapl_common      40960  1 intel_rapl_msr
intel_rapl_msr         20480  0
intel_tcc_cooling      16384  0
ip_tables              32768  0
joydev                 32768  0
kvm                  1011712  1 kvm_intel
kvm_intel             376832  0
ledtrig_audio          16384  1 snd_hda_codec_generic
libahci                45056  1 ahci
lp                     28672  0
mac_hid                16384  0
mei                   135168  3 mei_hdcp,mei_me
mei_hdcp               24576  0
mei_me                 40960  1
mii                    20480  1 usbnet
Module                  Size  Used by
msr                    16384  0
mxm_wmi                16384  0
nls_iso8859_1          16384  1
nvidia              35356672  606 nvidia_uvm,nvidia_modeset
nvidia_drm             65536  9
nvidia_modeset       1200128  13 nvidia_drm
nvidia_uvm           1187840  0
parport                69632  3 parport_pc,lp,ppdev
parport_pc             53248  1
ppdev                  24576  0
pstore_blk             16384  0
pstore_zone            32768  1 pstore_blk
ramoops                28672  0
rapl                   20480  0
rc_core                61440  1 cec
reed_solomon           28672  1 ramoops
rndis_host             20480  0
sch_fq_codel           24576  4
snd                   102400  29 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         163840  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_codec_generic   102400  1 snd_hda_codec_realtek
snd_hda_codec_hdmi     77824  1
snd_hda_codec_realtek   155648  1
snd_hda_core          110592  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hda_intel          53248  9
snd_hwdep              16384  1 snd_hda_codec
snd_intel_dspcfg       28672  1 snd_hda_intel
snd_intel_sdw_acpi     20480  1 snd_intel_dspcfg
snd_pcm               135168  4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd_rawmidi            49152  1 snd_seq_midi
snd_seq                77824  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              40960  2 snd_seq,snd_pcm
soundcore              16384  1 snd
syscopyarea            16384  1 drm_kms_helper
sysfillrect            20480  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
uas                    28672  0
usbhid                 65536  0
usbnet                 53248  2 rndis_host,cdc_ether
usb_storage            77824  1 uas
video                  57344  0
wl                   6467584  0
wmi                    32768  1 mxm_wmi
x86_pkg_temp_thermal    20480  0
xhci_pci               24576  0
xhci_pci_renesas       20480  1 xhci_pci
x_tables               53248  1 ip_tables
>>    iwconfig 

wlp3s0    IEEE 802.11  ESSID:"ClemBox24"  
          Mode:Managed  Frequency:2.422 GHz  Access Point: 78:B2:13:16:54:5C   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          

>>    ip a 

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eno1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 30:9c:23:ac:4a:67 brd ff:ff:ff:ff:ff:ff
    altname enp0s31f6
4: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 2c:fd:a1:60:be:13 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.17/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp3s0
       valid_lft 86094sec preferred_lft 86094sec
    inet6 fe80::5226:8db8:630:15d3/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
5: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/ether ba:08:8b:d5:4c:63 brd ff:ff:ff:ff:ff:ff
    inet 192.168.187.209/24 brd 192.168.187.255 scope global dynamic noprefixroute usb0
       valid_lft 3519sec preferred_lft 3519sec
    inet6 2a04:cec0:11a1:e0f:f7cb:b750:2116:28ad/64 scope global temporary dynamic 
       valid_lft 3529sec preferred_lft 3529sec
    inet6 2a04:cec0:11a1:e0f:2d9:d14f:3e2f:b423/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 3529sec preferred_lft 3529sec
    inet6 fe80::9bb6:f5f:98f7:2afe/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

>>    sudo iwlist scan 

wlp3s0    Scan completed :
          Cell 01 - Address: 78:B2:13:16:54:5C
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=58/70  Signal level=-52 dBm  
                    Encryption key:on
                    ESSID:"ClemBox24"
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 0009436C656D426F783234
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030103
                    IE: Unknown: 0706465220010D14
                    IE: Unknown: 200100
                    IE: Unknown: 23021100
                    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: 0B050200310000
                    IE: Unknown: 46053200000000
                    IE: Unknown: 2D1AAD0117FFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D1603080400000000000000000000000000000000000000
                    IE: Unknown: 7F080400000000000040
                    IE: Unknown: DD960050F204104A0001101044000102103B00010310470010373842323133F136F53435433738423210210007536572636F6D6D10230015536572636F6D6D56443833365F4C697665626F78341024000C53525F4C42345F412E302E371042000946424B4C30303146461054000800060050F2040001101100094C697665626F782034100800020006103C0001011049000600372A000120
                    IE: Unknown: DD090010180202101C0000
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
          Cell 02 - Address: 10:0C:6B:D6:38:71
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=45/70  Signal level=-65 dBm  
                    Encryption key:on
                    ESSID:"ClemBox24_2GEXT"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000F436C656D426F7832345F3247455854
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030103
                    IE: Unknown: 32040C183060
                    IE: Unknown: 0706465220010D14
                    IE: Unknown: 33082001020304050607
                    IE: Unknown: 33082105060708090A0B
                    IE: Unknown: 050400020000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD310050F204104A000110104400010210470010061C63CDD3D795DE3BC569A05047F373103C0001011049000600372A000120
                    IE: Unknown: 2A0104
                    IE: Unknown: 2D1AEC0117FFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1603000000000000000000000000000000000000000000
                    IE: Unknown: 7F080100000000000000
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: DD07000C4303000000
          Cell 03 - Address: E8:BE:81:9C:3D:B0
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=55/70  Signal level=-55 dBm  
                    Encryption key:on
                    ESSID:"Bbox-ED78D64D"
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000D42626F782D4544373844363444
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: Unknown: 32040C121860
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B050000910000
                    IE: Unknown: 420100
                    IE: Unknown: 2D1ABC081BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1606081100000000000000000000000000000000000000
                    IE: Unknown: 7F080400080000000040
                    IE: Unknown: DD800050F204104A0001101044000102103B00010310470010B1488CDA0BBC5B5CCB5185D85DEE14DC1021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D415010080002200C103C0001011049000600372A000120
                    IE: Unknown: DD090010180200001C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
          Cell 04 - Address: E2:02:E9:3A:66:9E
                    Channel:7
                    Frequency:2.442 GHz (Channel 7)
                    Quality=44/70  Signal level=-66 dBm  
                    Encryption key:on
                    ESSID:"FreeWifi_secure"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000F46726565576966695F736563757265
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030107
                    IE: Unknown: 32040C183060
                    IE: Unknown: 33082001020304050607
                    IE: Unknown: 33082105060708090A0B
                    IE: Unknown: 05040001000C
                    IE: Unknown: 2A0104
                    IE: Unknown: 2D1A6E1017FFFF000001000000000000000000000000000000000000
                    IE: Unknown: 3D1607000000000000000000000000000000000000000000
                    IE: Unknown: 7F0101
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : 802.1x
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 0B05000042127A
                    IE: Unknown: DD1E00904C336E1017FFFF000001000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C3407000000000000000000000000000000000000000000
                    IE: Unknown: DD07000C4300000000
          Cell 05 - Address: E2:02:E9:3A:66:9C
                    Channel:7
                    Frequency:2.442 GHz (Channel 7)
                    Quality=43/70  Signal level=-67 dBm  
                    Encryption key:on
                    ESSID:"freebox_AMKKMU"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000E66726565626F785F414D4B4B4D55
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030107
                    IE: Unknown: 2A0104
                    IE: Unknown: 32040C183060
                    IE: Unknown: 2D1A6E1017FFFF000001000000000000000000000000000000000000
                    IE: Unknown: 3D1607000000000000000000000000000000000000000000
                    IE: Unknown: 3E0100
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 7F0101
                    IE: Unknown: DD07000C4300000000
                    IE: Unknown: DD1E00904C336E1017FFFF000001000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C3407000000000000000000000000000000000000000000
          Cell 06 - Address: 14:0C:76:E5:10:C8
                    Channel:8
                    Frequency:2.447 GHz (Channel 8)
                    Quality=47/70  Signal level=-63 dBm  
                    Encryption key:on
                    ESSID:"FREEBOX_VERONIQUE_X7"
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 001446524545424F585F5645524F4E495155455F5837
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030108
                    IE: Unknown: 2A0104
                    IE: Unknown: 32043048606C
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B050100000000
                    IE: Unknown: 46057200000000
                    IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
                    IE: Unknown: 3D1608000400000000000000000000000000000000000000
                    IE: Unknown: 7F080000080200000040
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101010003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0C0007CB010101000000000000
          Cell 07 - Address: 08:3E:5D:C8:14:2E
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=67/70  Signal level=-43 dBm  
                    Encryption key:on
                    ESSID:"Livebox-142E"
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000C4C697665626F782D31343245
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 0706465220010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1AAD011BFFFF0000000000000000000000000000000406E4A70C00
                    IE: Unknown: 331AAD011BFFFF0000000000000000000000000000000406E4A70C00
                    IE: Unknown: 3D160B000100000000000000000000000000000000000000
                    IE: Unknown: 34160B000100000000000000000000000000000000000000
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD8F0050F204104A0001101044000102103B00010310470010373F3A4C3C4BFA3FF83B394C373F3A4C10210008536167656D636F6D10230016536167656D636F6D46617374333936355F4C42322E381024000C53475F4C42335F312E322E34104200094E51313730323446461054000800060050F204000110110000100800020006103C0001011049000600372A000120
          Cell 08 - Address: F4:05:95:38:0C:50
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=38/70  Signal level=-72 dBm  
                    Encryption key:on
                    ESSID:"Casa David"
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000A43617361204461766964
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0100
                    IE: Unknown: 32040C121860
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B050000820000
                    IE: Unknown: 420100
                    IE: Unknown: 2D1ABC081BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B081100000000000000000000000000000000000000
                    IE: Unknown: 7F080400080000000040
                    IE: Unknown: DD800050F204104A0001101044000102103B000103104700101E59570BBC3155074C5CFE86F214318D1021000842726F6164636F6D1023000842726F6164636F6D1024000631323334353610420004313233341054000800060050F20400011011000A42726F6164636F6D415010080002200C103C0001011049000600372A000120
                    IE: Unknown: DD090010180200001C0000
                    IE: Unknown: DD180050F2020101880003A4000027A4000042435E0062322F00
          Cell 09 - Address: 60:35:C0:AE:36:DC
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"SFR_36D8"
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 00085346525F33364438
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 23021000
                    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: 0B0503002A0000
                    IE: Unknown: 46053200000000
                    IE: Unknown: 2D1AAD0117FFFFFFFF00000000000000000000000000000000000000
                    IE: Unknown: 3D1601080400000000000000000000000000000000000000
                    IE: Unknown: 7F0A04000880010000C00140
                    IE: Unknown: FF2323050008120010202002C00F438518000C00AAFFAAFF7B1CC7711CC7711CC7711CC771
                    IE: Unknown: FF07240400010DFCFF
                    IE: Unknown: FF0E260C00A40820A408404308603208
                    IE: Unknown: DD7E0050F204104A0001101044000102103B0001031047001011658D431209DF9F9B3143A89A72BC021021000842726F6164636F6D1023000842726F6164636F6D102400043132333410420004313233341054000800060050F20400011011000A42726F6164636F6D4150100800022008103C0001031049000600372A000120
                    IE: Unknown: DD1E00904C0418BF0CB1698B0FAAFF0000AAFF0000C0050001000000C3020024
                    IE: Unknown: DD090010180203001C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F20201018C0003A4000027A4000042435E0062322F00
                    IE: Unknown: 6C027F00
          Cell 10 - Address: B8:BE:F4:80:82:FA
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=64/70  Signal level=-46 dBm  
                    Encryption key:on
                    ESSID:"wifi nid douillet "
                    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=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 001277696669206E696420646F75696C6C657420
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030101
                    IE: Unknown: 0706444520010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: 460573D000000C
                    IE: Unknown: 2D1AAD011BFFFF0000000000000000000001000000000406E6A70C00
                    IE: Unknown: 3D1601000500000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0805000F0200000040
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: Unknown: DD168CFDF0040000494C510302097201000000003D000000
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                       Preauthentication Supported
                    IE: Unknown: DD770050F204104A0001101044000102103B00010310470010876543219ABCDEF01234B8BEF48082FB1021000B6F70656E7772742E6F726710230003574150102400033132331042000531323334351054000800060050F20400011011000A4F70656E5772742041501008000220081049000600372A000120
                    IE: Unknown: DD1F8CFDF00000010100000100000000000000FFFF000000000000B8BEF48082FA
                    IE: Unknown: DD088CFDF00101020100
          Cell 11 - Address: 20:66:CF:EC:22:63
                    Channel:40
                    Frequency:5.2 GHz (Channel 40)
                    Quality=22/70  Signal level=-88 dBm  
                    Encryption key:on
                    ESSID:"Freebox-5AD6F3"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000E46726565626F782D354144364633
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 030128
                    IE: Unknown: 070A465220240817640B1E00
                    IE: Unknown: 200100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B0503000D0000
                    IE: Unknown: 46057200000000
                    IE: Unknown: 3B028000
                    IE: Unknown: 2D1AEF001BFFFFFFFF00000000000000000100000000000000000000
                    IE: Unknown: 3D1628070400000000000000000000000000000000000000
                    IE: Unknown: 7F080400080200000040
                    IE: Unknown: BF0CF2790B30AAFF0000AAFF0020
                    IE: Unknown: C005012A00FCFF
                    IE: Unknown: C304022E2E2E
                    IE: Unknown: DD180050F2020101010003A4000027A4000042435E0062322F00
                    IE: Unknown: DD8D0050F204104A00011010440001021057000101103B00010310470010C1C1EBFC0BE34EA787BD591CE32699C71021000A46726565626F782053411023000E46726565626F782053657276657210240001381042000C3230363643463541443646331054000800060050F20400011011000746726565626F78100800020000103C0001021049000600372A000120
                    IE: Unknown: DD0C0007CB010801000000000000
          Cell 12 - Address: 24:7F:20:A8:6E:4F
                    Channel:40
                    Frequency:5.2 GHz (Channel 40)
                    Quality=23/70  Signal level=-87 dBm  
                    Encryption key:on
                    ESSID:"SFR-6e48_5GHz"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000D5346522D366534385F3547487A
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 07344445202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E84011E88011E8C011E00
                    IE: Unknown: 200100
                    IE: Unknown: 23021300
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B050000080000
                    IE: Unknown: 46057208010000
                    IE: Unknown: 2D1AAD0917FFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D1628080000000000000000000000000000000000000000
                    IE: Unknown: 7F080400080000000040
                    IE: Unknown: BF0CB251820FEAFF0000EAFF0000
                    IE: Unknown: C0050028000000
                    IE: Unknown: C3020002
                    IE: Unknown: DD830050F204104A0001101044000102103B00010310470010F8D5C4F808ECF1CAF24BE89108A6BA4310210008536167656D636F6D10230008536167656D636F6D1024000631323334353610420007303030303030311054000800060050F20400011011000A536167656D636F6D4150100800022008103C0001031049000600372A000120
                    IE: Unknown: DD090010180200001C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
          Cell 13 - Address: 08:3E:5D:F5:84:0F
                    Channel:40
                    Frequency:5.2 GHz (Channel 40)
                    Quality=26/70  Signal level=-84 dBm  
                    Encryption key:on
                    ESSID:"SFR-8408_5GHz"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000D5346522D383430385F3547487A
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 07344445202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E84011E88011E8C011E00
                    IE: Unknown: 200100
                    IE: Unknown: 23021400
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B0500000E0000
                    IE: Unknown: 46057208010000
                    IE: Unknown: 2D1AEF0917FFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D16280F0000000000000000000000000000000000000000
                    IE: Unknown: 7F080400080000000040
                    IE: Unknown: BF0CB251820FEAFF0000EAFF0000
                    IE: Unknown: C005012A000000
                    IE: Unknown: C30402020202
                    IE: Unknown: DD830050F204104A0001101044000102103B000103104700108964874B86D8975D548ECE41B04A602010210008536167656D636F6D10230008536167656D636F6D1024000631323334353610420007303030303030311054000800060050F20400011011000A536167656D636F6D4150100800022008103C0001031049000600372A000120
                    IE: Unknown: DD090010180200001C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
          Cell 14 - Address: 54:64:D9:58:4A:17
                    Channel:44
                    Frequency:5.22 GHz (Channel 44)
                    Quality=24/70  Signal level=-86 dBm  
                    Encryption key:on
                    ESSID:"SFR-4a10"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 00085346522D34613130
                    IE: Unknown: 01088C129824B048606C
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B050200120000
                    IE: Unknown: 2D1AEF091BFFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D162C0D1600000000000000000000000000000000000000
                    IE: Unknown: 7F080400080000000040
                    IE: Unknown: BF0CB259820FEAFF0000EAFF0000
                    IE: Unknown: C005012A000000
                    IE: Unknown: C30402020202
                    IE: Unknown: DD830050F204104A0001101044000102103B00010310470010AE526BE3EF03D4025F6B205DC6500BCB10210008454D544136322D3110230008454D544136322D311024000631323334353610420007303030303030311054000800060050F20400011011000A536167656D436F6D4150100800020000103C0001031049000600372A000120
                    IE: Unknown: DD090010180202001C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: 46057208010000
          Cell 15 - Address: 8C:97:EA:E7:5F:34
                    Channel:48
                    Frequency:5.24 GHz (Channel 48)
                    Quality=21/70  Signal level=-89 dBm  
                    Encryption key:on
                    ESSID:"Freebox-311D9F"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000E46726565626F782D333131443946
                    IE: Unknown: 01088C129824B048606C
                    IE: Unknown: 030130
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 0B050000090000
                    IE: Unknown: 46057200000000
                    IE: Unknown: 3B028000
                    IE: Unknown: 2D1AEF001BFFFFFFFF00000000000000000100000000000000000000
                    IE: Unknown: 3D1630070000000000000000000000000000000000000000
                    IE: Unknown: 7F080400080200000040
                    IE: Unknown: BF0CF2790B30AAFF0000AAFF0020
                    IE: Unknown: C005012A00FCFF
                    IE: Unknown: C304022E2E2E
                    IE: Unknown: DD180050F2020101010003A4000027A4000042435E0062322F00
                    IE: Unknown: DD8D0050F204104A00011010440001021057000101103B0001031047001021E689C5E1FB4559AE4A9205B4C832661021000A46726565626F782053411023000E46726565626F782053657276657210240001381042000C3843393745413331314439461054000800060050F20400011011000746726565626F78100800020000103C0001021049000600372A000120
                    IE: Unknown: DD0C0007CB010801000000000000
          Cell 16 - Address: F4:05:95:38:0C:54
                    Channel:48
                    Frequency:5.24 GHz (Channel 48)
                    Quality=30/70  Signal level=-80 dBm  
                    Encryption key:on
                    ESSID:"Casa David"
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 16ms ago
                    IE: Unknown: 000A43617361204461766964
                    IE: Unknown: 01088C1218243048606C
                    IE: Unknown: 030130
                    IE: Unknown: 0B05010007FFFF
                    IE: Unknown: 07344652202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E78011E7C011E80011E00
                    IE: Unknown: 200100
                    IE: Unknown: C3050217171700
                    IE: Unknown: 2D1AEF0117FFFFFFFFFEFFFFFFFF1F000001000000000018E6E71900
                    IE: Unknown: 3D1630070400000000000000000000000000000000000000
                    IE: Unknown: DD180050F20201018B0003A4000027A4000042435E0062322F00
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 7F080100080200000040
                    IE: Unknown: DDAB0050F204104A00011010440001021057000101103B00010310470010961B1ED80919541DB7804A7F40FA3894102100095175616E74656E6E6110230005546F70617A1024000951563834302E3433321042000C4634303539353338304335341054000800060050F2040001101100105265666572656E63652044657369676E1008000220081049000600372A0001201058001807E3286F28BE10D601D946C1B9F06AB50001010103007FC5
                    IE: Unknown: BF0CB279C33FAAFF0000AAFF0000
                    IE: Unknown: C005012A00FCFF
                    IE: Unknown: DD1E002686010300DD000000250405F7000601B0606E61F40000000700000000
                    IE: Unknown: DD226C2E85014661737435333330622D72312F7633372E342E352E323437683237613234


>>    uname -r -m 

5.15.0-58-generic x86_64

>>    cat /etc/network/interfaces 


>>    nm-tool 


>>    nmcli dev wifi 

IN-USE  BSSID              SSID                  MODE   CHAN  RATE        SIGNAL  BARS  SECURITY    
        08:3E:5D:C8:14:2E  Livebox-142E          Infra  11    130 Mbit/s  95      ▂▄▆█  WPA1 WPA2   
        B8:BE:F4:80:82:FA  wifi nid douillet     Infra  1     130 Mbit/s  90      ▂▄▆█  WPA2        
*       78:B2:13:16:54:5C  ClemBox24             Infra  3     195 Mbit/s  80      ▂▄▆_  WPA2        
        E8:BE:81:9C:3D:B0  Bbox-ED78D64D         Infra  6     130 Mbit/s  75      ▂▄▆_  WPA1 WPA2   
        60:35:C0:AE:36:DC  SFR_36D8              Infra  1     260 Mbit/s  64      ▂▄▆_  WPA1 WPA2   
        14:0C:76:E5:10:C8  FREEBOX_VERONIQUE_X7  Infra  8     195 Mbit/s  62      ▂▄▆_  WPA1 WPA2   
        10:0C:6B:D6:38:71  ClemBox24_2GEXT       Infra  3     130 Mbit/s  59      ▂▄▆_  WPA1 WPA2   
        E2:02:E9:3A:66:9E  FreeWifi_secure       Infra  7     270 Mbit/s  57      ▂▄▆_  WPA1 802.1X 
        E2:02:E9:3A:66:9C  freebox_AMKKMU        Infra  7     270 Mbit/s  55      ▂▄__  WPA1        
        F4:05:95:38:0C:50  Casa David            Infra  11    130 Mbit/s  47      ▂▄__  WPA2        
        F4:05:95:38:0C:54  Casa David            Infra  48    540 Mbit/s  34      ▂▄__  WPA2        
        08:3E:5D:F5:84:0F  SFR-8408_5GHz         Infra  40    405 Mbit/s  27      ▂___  WPA1 WPA2   
        54:64:D9:58:4A:17  SFR-4a10              Infra  44    405 Mbit/s  24      ▂___  WPA1 WPA2   
        24:7F:20:A8:6E:4F  SFR-6e48_5GHz         Infra  40    195 Mbit/s  22      ▂___  WPA1 WPA2   
        20:66:CF:EC:22:63  Freebox-5AD6F3        Infra  40    540 Mbit/s  20      ▂___  WPA2        
        8C:97:EA:E7:5F:34  Freebox-311D9F        Infra  48    540 Mbit/s  19      ▂___  WPA2        

>>    nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04) 

NAME                 UUID                                  TYPE      DEVICE 
Connexion filaire 2  81566257-4eba-37cc-b6af-f89fafa4581f  ethernet  usb0   
ClemBox24            36825500-e103-4484-8666-4fa16f9e3872  wifi      wlp3s0 
Connexion filaire 1  11500587-2bc4-325a-b76f-304f4a985709  ethernet  --     
Livebox-142E         e129ae52-b236-4543-a53e-2d9210436c1d  wifi      --     

>>    sudo rfkill list 

0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: brcmwl-0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

Merci d'avance !

Hors ligne

#2 Le 16/01/2023, à 17:33

achille1017

Re : Connexion wi-fi anormalement faible et instable

pilote wifi
Voici le pilote de ma carte wi-fi

Hors ligne

#3 Le 16/01/2023, à 17:37

xubu1957

Re : Connexion wi-fi anormalement faible et instable

Bonjour,

 nmcli dev wifi 

IN-USE  BSSID              SSID                  MODE   CHAN  RATE        SIGNAL  BARS  SECURITY    
*       78:B2:13:16:54:5C  ClemBox24             Infra  3     195 Mbit/s  80      ▂▄▆_  WPA2      

As-tu essayé avec les canaux conseillés (au lieu du canal 3) ?

Le 07/03/2018, un expert du wifi sur Ubuntu, chili555 a écrit :

Please check the settings in the router. WPA2-AES is preferred; not any WPA and WPA2 mixed mode and certainly not TKIP. Second, if your router is capable of N speeds, you may have better connectivity with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz, although it is likely to affect N speeds. I also have better luck with a fixed channel, either 1, 6 or 11, rather than automatic channel selection. Also, be certain the router is not set to use N speeds only; auto B, G and N is preferred. After making these changes, reboot the router.

Veuillez vérifier les paramètres dans le routeur. WPA2-AES est préférable ; pas de mode mixte WPA et WPA2 et certainement pas de TKIP. Deuxièmement, si votre routeur est capable du mode N, vous pouvez avoir une meilleure connectivité avec une largeur de canal de 20 MHz dans la bande 2,4 GHz au lieu de 20/40 MHz automatique, bien que cela puisse affecter  mode N. J'ai aussi plus de chance avec un canal fixe, 1, 6 ou 11, plutôt que la sélection automatique des canaux. Assurez-vous également que le routeur n'est pas configuré pour utiliser uniquement du mode N; Auto B, G et N sont préférés. Après avoir apporté ces modifications, redémarrez le routeur.

> AC600 usb wifi adapter 17.10 need help -wireless script pastebin inc...

> chili555
       _ _ _

(edit=messages regroupés)
        _ _ _


Ta Box peut-elle aussi utiliser les fréquences 5 GHz, pour essayer un canal 36 ?

Dernière modification par xubu1957 (Le 16/01/2023, à 17:44)


Conseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Résolu] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci.                   Membre de Linux-Azur

En ligne

#4 Le 16/01/2023, à 17:52

achille1017

Re : Connexion wi-fi anormalement faible et instable

Je viens de passer au canal 11 et il me semble que c'est mieux mais je me demande si ce sera toujours le cas dans 5 minutes ou 1 heure. C'est un autre problème, ma box a en effet la fréquence 5 ghz mais le réseau wifi n'est pas détecté... Je suis connecté sur Clembox24 qui est en 2.4 ghz et le réseau Clembox5 qui est détectable sur windows et mes autres appareils n'apparait pas.

Hors ligne

#5 Le 16/01/2023, à 17:54

xubu1957

Re : Connexion wi-fi anormalement faible et instable

Pas de notice ou de site d'assistance pour ta Box ?


Conseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Résolu] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci.                   Membre de Linux-Azur

En ligne

#6 Le 16/01/2023, à 18:03

achille1017

Re : Connexion wi-fi anormalement faible et instable

Comment le problème pourrait-il venir de la box ? Tous mes autres appareils trouvent le wifi 5ghz. Voilà ça ne marche déjà plus.. De nouveau le même problème, je suis à moins de 0.5 mo/s.

Hors ligne

#7 Le 19/01/2023, à 16:24

Edmond Dantès

Re : Connexion wi-fi anormalement faible et instable

Salut.

Pour info, bien qu'ily ait officiellement 11 canaux Wi-Fi en 2,4 Ghz, seuls les 1, 6 et 11 sont utilisables. En effet, à cause de la "largeur de bande" le 1 déborde jusqu'au 3, donc il le parasite.

langfr-700px-2.4_GHz_Wi-Fi_channels_%28802.11b%2Cg_WLAN%29.svg.png

Autour de cette fréquence centrale le signal est modulé sur une plage de fréquence de 20 MHz à 22 MHz. Chaque canal occupe donc une plage de fréquence de +/-11 MHz autour de sa fréquence centrale

https://fr.wikipedia.org/wiki/Liste_des_canaux_Wi-Fi

Dernière modification par Edmond Dantès (Le 19/01/2023, à 16:26)


« Je te hais plus qu'aucun des dieux qui vivent sur l'Olympe
Car tu ne rêves que discordes, guerres et combats. »
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Le TdCT est revenu (ils reviennent tous)

Hors ligne