Bonjour,
Je suis débutant avec UBUNTU 20.04 LTS. Voyant le débit varier (monte dans les 70) et se retrouver souvent à 1MB/s j'ai essayé de le définir à 54M sans succès en utilisant les infos trouvées ici :
https://doc.ubuntu-fr.org/wifi_optimisation. Je ne trouve pas de fichier etc/init.d/rc.local
J'ai essayé
https://doc.ubuntu-fr.org/wifi au paragraphe 6.6 connexion lente mais la commande ifdown n'est pas reconnue.
Tout fonctionne en connexion filaire à la Livebox.
Merci pour votre aide.
Lebroc
>> lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal
>> lsusb
Bus 002 Device 003: ID 04f2:b249 Chicony Electronics Co., Ltd
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 3938:1031
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
02:00.0 Network controller [0280]: Ralink corp. RT5390 Wireless 802.11n 1T/1R PCIe [1814:5390]
Subsystem: Hewlett-Packard Company U98Z077.00 Half-size Mini PCIe Card [103c:1636]
Kernel driver in use: rt2800pci
Kernel modules: rt2800pci
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
DeviceName: Realtek Gbe Lan Connection
Subsystem: Hewlett-Packard Company RTL810xE PCI Express Fast Ethernet controller [103c:1672]
Kernel driver in use: r8169
Kernel modules: r8169
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader [10ec:5209] (rev 01)
>> sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: RT5390 Wireless 802.11n 1T/1R PCIe
fabricant: Ralink corp.
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlp2s0
version: 00
numéro de série: 94:39:e5:12:70:a9
bits: 32 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration : broadcast=yes driver=rt2800pci driverversion=5.8.0-41-generic firmware=0.40 ip=192.168.1.13 latency=0 link=yes multicast=yes wireless=IEEE 802.11
ressources : irq:16 mémoire:c2500000-c250ffff
*-network
description: Ethernet interface
produit: RTL810xE PCI Express Fast Ethernet controller
fabricant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:03:00.0
nom logique: eno1
version: 05
numéro de série: 10:1f:74:b3:4d:a1
taille: 100Mbit/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=5.8.0-41-generic duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.1.16 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
ressources : irq:17 portE/S:3000(taille=256) mémoire:c0404000-c0404fff mémoire:c0400000-c0403fff
>> lsmod | sort
ahci 40960 2
at24 24576 0
autofs4 45056 2
binfmt_misc 24576 1
ccm 20480 6
cec 53248 2 drm_kms_helper,i915
cfg80211 778240 2 rt2x00lib,mac80211
coretemp 20480 0
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 1 ghash_clmulni_intel
drm 552960 10 drm_kms_helper,radeon,i915,ttm
drm_kms_helper 217088 2 radeon,i915
eeprom_93cx6 16384 1 rt2800pci
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
hid 135168 2 usbhid,hid_generic
hid_generic 16384 0
hp_wireless 16384 0
hp_wmi 16384 0
i2c_algo_bit 16384 2 radeon,i915
i2c_i801 32768 0
i2c_smbus 20480 1 i2c_i801
i915 2195456 22
input_leds 16384 0
intel_cstate 20480 0
intel_powerclamp 20480 0
intel_rapl_common 28672 1 intel_rapl_msr
intel_rapl_msr 20480 0
ip_tables 32768 0
joydev 24576 0
ledtrig_audio 16384 1 snd_hda_codec_generic
libahci 36864 1 ahci
libarc4 16384 1 mac80211
lp 20480 0
lpc_ich 24576 0
mac80211 905216 3 rt2x00pci,rt2x00lib,rt2800lib
mac_hid 16384 0
mc 57344 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei 106496 3 mei_hdcp,mei_me
mei_hdcp 24576 0
mei_me 40960 1
Module Size Used by
nls_iso8859_1 16384 1
parport 65536 3 parport_pc,lp,ppdev
parport_pc 45056 0
ppdev 24576 0
psmouse 155648 0
r8169 77824 0
radeon 1466368 1
rapl 20480 0
rc_core 57344 1 cec
realtek 24576 1
rt2800lib 131072 2 rt2800mmio,rt2800pci
rt2800mmio 24576 1 rt2800pci
rt2800pci 16384 0
rt2x00lib 65536 5 rt2x00mmio,rt2x00pci,rt2800mmio,rt2800pci,rt2800lib
rt2x00mmio 16384 2 rt2800mmio,rt2800pci
rt2x00pci 16384 1 rt2800pci
rtsx_pci 81920 1 rtsx_pci_sdmmc
rtsx_pci_sdmmc 28672 0
sch_fq_codel 20480 6
serio_raw 20480 0
snd 94208 17 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm,snd_hda_codec_idt,snd_rawmidi
snd_hda_codec 139264 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_idt
snd_hda_codec_generic 81920 1 snd_hda_codec_idt
snd_hda_codec_hdmi 61440 1
snd_hda_codec_idt 61440 1
snd_hda_core 94208 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_idt
snd_hda_intel 53248 3
snd_hwdep 20480 1 snd_hda_codec
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_pcm 114688 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 40960 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 radeon
usbhid 57344 0
uvcvideo 98304 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 237568 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi 32768 2 hp_wmi,wmi_bmof
wmi_bmof 16384 0
x86_pkg_temp_thermal 20480 0
x_tables 45056 1 ip_tables
>> iwconfig
wlp2s0 IEEE 802.11 ESSID:"Livebox-1A16"
Mode:Managed Frequency:2.412 GHz Access Point: 74:9D:79:CE:1A:16
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short long limit:2 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=69/70 Signal level=-41 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2 Invalid misc:106 Missed beacon:0
>> 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: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 10:1f:74:b3:4d:a1 brd ff:ff:ff:ff:ff:ff
altname enp3s0
inet 192.168.1.16/24 brd 192.168.1.255 scope global dynamic noprefixroute eno1
valid_lft 81722sec preferred_lft 81722sec
inet6 2a01:cb18:8c0:ce00:40ce:ed0a:7dfd:dde5/64 scope global temporary dynamic
valid_lft 1765sec preferred_lft 565sec
inet6 2a01:cb18:8c0:ce00:7eee:e6b7:6357:9fa6/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 1765sec preferred_lft 565sec
inet6 fe80::558d:2f79:e0e5:e777/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 94:39:e5:12:70:a9 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.13/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp2s0
valid_lft 82967sec preferred_lft 82967sec
inet6 2a01:cb18:8c0:ce00:eff0:fbf6:c52a:a16f/64 scope global temporary dynamic
valid_lft 1618sec preferred_lft 418sec
inet6 2a01:cb18:8c0:ce00:ae40:6d84:7e89:87a6/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 1618sec preferred_lft 418sec
inet6 fe80::529e:2451:d0a:bf3a/64 scope link noprefixroute
valid_lft forever preferred_lft forever
>> sudo iwlist scan
wlp2s0 Scan completed :
Cell 01 - Address: 74:9D:79:CE:1A:16
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=-29 dBm
Encryption key:on
ESSID:"Livebox-1A16"
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=000000074515c65b
Extra: Last beacon: 24ms ago
IE: Unknown: 000C4C697665626F782D31413136
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 0706465220010D14
IE: Unknown: 200100
IE: Unknown: 23021100
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: 0B050200110000
IE: Unknown: 2D1AAD0117FFFFFF0000000000000000000000000000000000000000
IE: Unknown: 3D1601080400000000000000000000000000000000000000
IE: Unknown: 7F080400000000000040
IE: Unknown: DD960050F204104A0001101044000102103B00010310470010373439443739F345F14131363734394410210007536572636F6D6D10230015536572636F6D6D56443833365F4C697665626F78341024000C53525F4C42345F412E302E371042000946424B4C30303146461054000800060050F2040001101100094C697665626F782034100800020006103C0001011049000600372A000120
IE: Unknown: DD090010180202101C0000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 02 - Address: 52:57:9C:B5:0E:4A
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=29/70 Signal level=-81 dBm
Encryption key:on
ESSID:"DIRECT-9CB58E4A"
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=00000003f6bc97a0
Extra: Last beacon: 24ms ago
IE: Unknown: 000F4449524543542D3943423538453441
IE: Unknown: 01088C129824B048606C
IE: Unknown: 030106
IE: Unknown: 200100
IE: Unknown: 23021000
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 2D1A20001AFF00000000000000000000000000000000000000000000
IE: Unknown: 3D1606080000000000000000000000000000000000000000
IE: Unknown: DD090010180200000C0000
IE: Unknown: DD180050F2020101840003A4000027A4000042435E0062322F00
IE: Unknown: DDB90050F204104A0001101044000101103B00010010470010CFE9210067C411D4A45F50579CB58E4A102100054550534F4E1023000E45542D32373530205365726965731024000E45542D32373530205365726965731042000C3530353739434235384534411054000800030050F20400051011001A4550534F4E4235384534412045542D32373530205365726965731008000206801049000600372A0001201049001700013710060010CFE9210067C411D4A45F50579CB58E4A
Cell 03 - Address: 68:A3:78:83:1B:57
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=13/70 Signal level=-97 dBm
Encryption key:on
ESSID:"FreeWifi_secure"
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=00000011132d915f
Extra: Last beacon: 1132ms ago
IE: Unknown: 000F46726565576966695F736563757265
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050400020000
IE: Unknown: 2A0104
IE: Unknown: 32043048606C
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : 802.1x
IE: Unknown: 46057200000000
IE: Unknown: 0B0500002C0000
IE: Unknown: 2D1AEC0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1606000400000000000000000000000000000000000000
IE: Unknown: 7F080000080200000040
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD0C0007CB010203000000000000
Cell 04 - Address: CC:D4:2E:59:E1:D0
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=31/70 Signal level=-79 dBm
Encryption key:on
ESSID:"Livebox-1A16"
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=000000033e69f190
Extra: Last beacon: 424ms ago
IE: Unknown: 000C4C697665626F782D31413136
IE: Unknown: 010882848B968C9298A4
IE: Unknown: 03010B
IE: Unknown: 050401030000
IE: Unknown: 0706465220010D1E
IE: Unknown: 2A0104
IE: Unknown: 3204B0C8E0EC
IE: Unknown: 0B050100000000
IE: Unknown: 2D1AAD191FFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B000000000000000000000000000000000000000000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C33AD191FFFFF000000000000000000000000000000000000000000
IE: Unknown: DD1A00904C340B000000000000000000000000000000000000000000
IE: Unknown: DD0600E04C020160
IE: Unknown: DD180050F204104A00011010440001021049000600372A000120
IE: Unknown: 7F080000080000000000
>> uname -r -m
5.8.0-41-generic x86_64
>> cat /etc/network/interfaces
>> nm-tool
>> nmcli dev wifi
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
* 74:9D:79:CE:1A:16 Livebox-1A16 Infra 1 195 Mbit/s 100 ▂▄▆█ WPA2
CC:D4:2E:59:E1:D0 Livebox-1A16 Infra 11 130 Mbit/s 35 ▂▄__ WPA2
52:57:9C:B5:0E:4A DIRECT-9CB58E4A Infra 6 65 Mbit/s 32 ▂▄__ WPA2
68:A3:78:83:1B:57 FreeWifi_secure Infra 6 195 Mbit/s 5 ____ WPA2 802.1X
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Connexion filaire 1 4f2f7bdb-a4fd-3ce8-b575-bdd17f3c2771 ethernet eno1
Livebox-1A16 49a89286-3383-4a1c-9de1-0ba2ff52601d wifi wlp2s0
Freebox-831B54 51d3d23a-8927-4b67-8a32-8f8ed81509a0 wifi --
>> sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SOLUTION :
La manip suivante permet de rendre permanente la suppression de la gestion de l'énergie (et donc la mise en mode économie d'énergie)
de la carte wifi sur Ubuntu 20.04 LTS et supprime le problème d'instabilité du wifi qui entraînait des déconnexions intempestives d'internet :
gedit admin:///etc/networkmanager/conf.d/default-wifi-powersave-on.conf
changer ensuite ,dans le fichier qui s'ouvre, la valeur par défaut de wifi.powersafe=3 (c'est-à-dire "on") en 2 (="off")
Merci xubu1957 !
Ce problème est dans le top 5 des threads de la "Ubuntu weekly newsletter de la semaine du 17 au 23 janvier 2021". Un utilisateur a comme moi et,avec une autre carte wifi, vu apparaître le problème depuis une mise à jour de janvier. Et il se demande comme moi si un correctif va être fait.
Thread: Ubuntu 20.04.1 LTS, network disconnects every so often? Fix?https://ubuntuforums.org/showthread.php?t=2456744 On y trouve plusieurs solutions dont en premier celle-ci qui revient au même que ma solution ci-dessus :
sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*