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Wifi trop lent sur ubuntu 16.04 LTS

easybeau

Bonjour,

J'utilise 2 ordinateurs qui ont le même accès Wifi. Un est très rapide et l'autre est lent. C'est très embêtant pour les mises à jour!

Voici le retour de : iwconfig du pc lent :

lo        no wireless extensions.

wlo1      IEEE 802.11bgn  ESSID:"Wifi La-Tour"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 04:18:D6:8F:79:11   
          Bit Rate=6.5 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=27/70  Signal level=-83 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:2970  Invalid misc:847   Missed beacon:0

eno1      no wireless extensions.

J'ai déjà amélioré la vitesse de 1Mb/s à 6.5Mb/s en faisant :

sudo iwconfig wlo1 power off

Voici le retour de : lspci | grep -i net

01:00.0 Network controller: Ralink corp. Device 539a
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)

Comment faire pour améliorer la vitesse du wifi pour que l'ordinateur soit plus performant?

Merci pour votre aide.

xubu1957

Bonjour,

Vu :

Tx excessive retries:2970  Invalid misc:847   Missed beacon:0

> wifi-too-much-invalid-misc-how-to-fix-it

Wifi "Invalid misc", comment le réparer?
Voici quelques résultats:
root@debian:/home/love# iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"SITI_Broadband-06E6-G"  
      ...
          Tx excessive retries:0  Invalid misc:202   Missed beacon:0
J'ai remarqué que la valeur augmente avec le temps et que mon wifi reste connecté, mais Internet arrête de fonctionner.

Cela ressemble à un problème typique d'interférence wifi. Essayez de localiser l'appareil causant le problème et, lorsque vous le faites, supprimez cette question car elle serait hors sujet. Il suffit simplement de désactiver la plupart des équipements électroniques et de faire attention à ce qui change lorsque les problèmes commencent, peut généralement résoudre 90% de ceux-ci.

Dans > linux.die.net/man/8/iwconfig

Tx excessive retries
Number of packets that the hardware failed to deliver. Most MAC protocols will retry the packet a number of times before giving up.
Nombre de paquets que le matériel n' a pas pu livrer. La plupart des protocoles MAC vont réessayer le paquet plusieurs fois avant d'abandonner.

Invalid misc
Other packets lost in relation with specific wireless operations.
Autres paquets perdus en relation avec des opérations sans fil spécifiques.

_ _ _

Fournis aussi :

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

lsmod

uname -r -m

easybeau

Bonjour et merci pour ta réponse.

J'ai compris le problème mais je ne sais pas comment détecter l'appareil causant le problème.

Voici le retour de

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

01:00.0 Network controller [0280]: Ralink corp. Device [1814:539a]
        DeviceName: Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC
        Subsystem: Hewlett-Packard Company Device [103c:1839]
        Kernel driver in use: rt2800pci
--
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 05)
        DeviceName: Realtek PCIe FE Family Controller
        Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:1845]
        Kernel driver in use: r8169
        Kernel modules: r8169
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)

lsmod

Module                  Size  Used by
msr                    16384  0
zram                   32768  2
lz4_compress           16384  1 zram
uvcvideo               90112  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         28672  1 uvcvideo
hp_wmi                 16384  0
videobuf2_core         36864  2 uvcvideo,videobuf2_v4l2
sparse_keymap          16384  1 hp_wmi
v4l2_common            16384  1 videobuf2_v4l2
videodev              180224  4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
media                  24576  2 uvcvideo,videodev
intel_rapl             20480  0
x86_pkg_temp_thermal    16384  0
intel_powerclamp       16384  0
coretemp               16384  0
crct10dif_pclmul       16384  0
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
cryptd                 20480  1 ghash_clmulni_intel
joydev                 20480  0
arc4                   16384  2
input_leds             16384  0
snd_hda_codec_hdmi     53248  1
serio_raw              16384  0
snd_hda_codec_idt      57344  1
rt2800pci              16384  0
snd_hda_codec_generic    77824  1 snd_hda_codec_idt
rt2800mmio             20480  1 rt2800pci
rt2800lib              94208  2 rt2800pci,rt2800mmio
rt2x00pci              16384  1 rt2800pci
snd_hda_intel          40960  3
snd_hda_codec         135168  4 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_intel
rt2x00mmio             16384  2 rt2800pci,rt2800mmio
rt2x00lib              57344  5 rt2x00pci,rt2800lib,rt2800pci,rt2800mmio,rt2x00mmio
mac80211              737280  3 rt2x00lib,rt2x00pci,rt2800lib
snd_hda_core           77824  5 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
rtsx_pci_ms            20480  0
snd_hwdep              16384  1 snd_hda_codec
memstick               20480  1 rtsx_pci_ms
snd_pcm               106496  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
cfg80211              565248  2 mac80211,rt2x00lib
snd_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
eeprom_93cx6           16384  1 rt2800pci
crc_ccitt              16384  1 rt2800lib
snd_rawmidi            32768  1 snd_seq_midi
snd_seq                69632  2 snd_seq_midi_event,snd_seq_midi
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              32768  2 snd_pcm,snd_seq
snd                    81920  17 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
hp_wireless            16384  0
soundcore              16384  1 snd
hp_accel               28672  0
lis3lv02d              20480  1 hp_accel
mei_me                 36864  0
input_polldev          16384  1 lis3lv02d
mei                    98304  1 mei_me
shpchp                 36864  0
lpc_ich                24576  0
mac_hid                16384  0
ip6t_REJECT            16384  1
nf_reject_ipv6         16384  1 ip6t_REJECT
nf_log_ipv6            16384  5
xt_hl                  16384  22
ip6t_rt                16384  3
nf_conntrack_ipv6      20480  8
nf_defrag_ipv6         36864  1 nf_conntrack_ipv6
ipt_REJECT             16384  1
nf_reject_ipv4         16384  1 ipt_REJECT
nf_log_ipv4            16384  5
nf_log_common          16384  2 nf_log_ipv4,nf_log_ipv6
xt_LOG                 16384  10
xt_limit               16384  13
xt_tcpudp              16384  18
xt_addrtype            16384  4
nf_conntrack_ipv4      16384  8
nf_defrag_ipv4         16384  1 nf_conntrack_ipv4
xt_conntrack           16384  16
ip6table_filter        16384  1
ip6_tables             28672  1 ip6table_filter
nf_conntrack_netbios_ns    16384  0
nf_conntrack_broadcast    16384  1 nf_conntrack_netbios_ns
nf_nat_ftp             16384  0
nf_nat                 28672  1 nf_nat_ftp
nf_conntrack_ftp       20480  1 nf_nat_ftp
nf_conntrack          106496  8 nf_nat_ftp,nf_conntrack_netbios_ns,nf_nat,xt_conntrack,nf_conntrack_broadcast,nf_conntrack_ftp,nf_conntrack_ipv4,nf_conntrack_ipv6
iptable_filter         16384  1
ip_tables              24576  1 iptable_filter
x_tables               36864  13 ip6table_filter,xt_hl,ip_tables,xt_tcpudp,xt_limit,xt_conntrack,xt_LOG,iptable_filter,ip6t_rt,ipt_REJECT,ip6_tables,xt_addrtype,ip6t_REJECT
parport_pc             32768  0
ppdev                  20480  0
lp                     20480  0
parport                49152  3 lp,ppdev,parport_pc
autofs4                40960  2
btrfs                 991232  0
xor                    24576  1 btrfs
raid6_pq              102400  1 btrfs
dm_mirror              24576  0
dm_region_hash         24576  1 dm_mirror
dm_log                 20480  2 dm_region_hash,dm_mirror
hid_logitech_hidpp     20480  0
rtsx_pci_sdmmc         24576  0
hid_logitech_dj        20480  0
i915                 1232896  2
i2c_algo_bit           16384  1 i915
drm_kms_helper        155648  1 i915
psmouse               131072  0
ahci                   36864  3
libahci                32768  1 ahci
syscopyarea            16384  1 drm_kms_helper
r8169                  86016  0
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
mii                    16384  1 r8169
rtsx_pci               53248  2 rtsx_pci_ms,rtsx_pci_sdmmc
usbhid                 49152  0
fb_sys_fops            16384  1 drm_kms_helper
drm                   364544  4 i915,drm_kms_helper
hid                   122880  3 usbhid,hid_logitech_dj,hid_logitech_hidpp
wmi                    20480  1 hp_wmi
video                  40960  1 i915
fjes                   28672  0

uname -r -m

4.4.0-124-generic x86_64

Merci.

xubu1957

Vu le noyau :

4.4.0-124-generic x86_64

le dernier diffusé est le 4.4.0.131 > linux-headers-generic

Tu devrais faire les mises à jour :

sudo apt update

sudo apt full-upgrade

suivi d'un redémarrage et donner :

nmcli dev wifi

_ _ _

Regarde aussi :

> les-dix-ennemis-des-reseaux-wi-fi-

> quel-canal-wi-fi-choisir-pour-optimiser-son-debit

> Wi-Fi-connexion-amelioration,

easybeau

Merci!

Je vais essayer de faire les mises à jour rapidement si ma connexion wifi me le permet.

à bientôt

xubu1957

Si tu as un smartphone > Connexion de secours - partage de connexion avec un smartphone .

easybeau

Bonjour,

Je n'arrive plus à activer le réseau wifi mais voici les retours de

cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="LXLE Eclectica 16.04.4 64-bit"

lsusb

Bus 002 Device 003: ID 0c45:6458 Microdia 
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 1307:0165 Transcend Information, Inc. 2GB/4GB/8GB Flash Drive
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
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 Network controller: Ralink corp. Device 539a
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)

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

01:00.0 Network controller [0280]: Ralink corp. Device [1814:539a]
	DeviceName: Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC
	Subsystem: Hewlett-Packard Company Device [103c:1839]
	Kernel driver in use: rt2800pci
--
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 05)
	DeviceName: Realtek PCIe FE Family Controller
	Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:1845]
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)

lspci -k

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
	Subsystem: Hewlett-Packard Company 2nd Generation Core Processor Family DRAM Controller
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
	DeviceName: Intel(R) Graphics
	Subsystem: Hewlett-Packard Company 2nd Generation Core Processor Family Integrated Graphics Controller
	Kernel driver in use: i915
	Kernel modules: i915
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family USB xHCI Host Controller
	Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family MEI Controller
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family USB Enhanced Host Controller
	Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family High Definition Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family USB Enhanced Host Controller
	Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
	Subsystem: Hewlett-Packard Company HM76 Express Chipset LPC Controller
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series Chipset Family 6-port SATA Controller [AHCI mode]
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family SMBus Controller
	Kernel modules: i2c_i801
01:00.0 Network controller: Ralink corp. Device 539a
	DeviceName: Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC
	Subsystem: Hewlett-Packard Company Device 1839
	Kernel driver in use: rt2800pci
	Kernel modules: rt2800pci
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)
	DeviceName: Realtek PCIe FE Family Controller
	Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 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

sudo lshw -C network

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
	Subsystem: Hewlett-Packard Company 2nd Generation Core Processor Family DRAM Controller
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
	DeviceName: Intel(R) Graphics
	Subsystem: Hewlett-Packard Company 2nd Generation Core Processor Family Integrated Graphics Controller
	Kernel driver in use: i915
	Kernel modules: i915
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family USB xHCI Host Controller
	Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family MEI Controller
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family USB Enhanced Host Controller
	Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family High Definition Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family USB Enhanced Host Controller
	Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
	Subsystem: Hewlett-Packard Company HM76 Express Chipset LPC Controller
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series Chipset Family 6-port SATA Controller [AHCI mode]
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
	Subsystem: Hewlett-Packard Company 7 Series/C210 Series Chipset Family SMBus Controller
	Kernel modules: i2c_i801
01:00.0 Network controller: Ralink corp. Device 539a
	DeviceName: Ralink WLAN Ralink Ripple3 RT5390F_802.11 b/g/n 1x1 PCIe HMC
	Subsystem: Hewlett-Packard Company Device 1839
	Kernel driver in use: rt2800pci
	Kernel modules: rt2800pci
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)
	DeviceName: Realtek PCIe FE Family Controller
	Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 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
isabelle@isabelle-HP-Pavilion-g7-Notebook-PC:~$ sudo lshw -C network
[sudo] Mot de passe de isabelle : 
  *-network DÉSACTIVÉ     
       description: Interface réseau sans fil
       produit: Ralink corp.
       fabriquant: Ralink corp.
       identifiant matériel: 0
       information bus: pci@0000:01:00.0
       nom logique: wlo1
       version: 00
       numéro de série: 84:4b:f5:22:5a:ef
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=4.4.0-124-generic firmware=0.34 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       ressources: irq:16 mémoire:c2500000-c250ffff
  *-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: eno1
       version: 05
       numéro de série: 28:92:4a:3b:05:e1
       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=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:25 portE/S:3000(taille=256) mémoire:c2404000-c2404fff mémoire:c2400000-c2403fff

ifconfig -a

eno1      Link encap:Ethernet  HWaddr 28:92:4a:3b:05:e1  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          Packets reçus:2654 erreurs:0 :0 overruns:0 frame:0
          TX packets:2654 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1 
          Octets reçus:200734 (200.7 KB) Octets transmis:200734 (200.7 KB)

wlo1      Link encap:Ethernet  HWaddr 84:4b:f5:22:5a:ef  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:2353 erreurs:0 :2 overruns:0 frame:0
          TX packets:715 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:197680 (197.6 KB) Octets transmis:124564 (124.5 KB)

cat /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

sudo rfkill list

0: phy0: Wireless LAN
	Soft blocked: yes
	Hard blocked: no

nmcli connection show

Connexion filaire 1  863492b3-c58d-3b3c-a07d-668efb05d465  802-3-ethernet   --           
Wifi La-Tour 1       85a6975f-a014-4680-9361-1f263ae40648  802-11-wireless  --

xubu1957

sudo rfkill list

0: phy0: Wireless LAN
	Soft blocked: yes
	Hard blocked: no

extrait § 4.1 a écritSi après Soft blocked vous avez un yes, alors le WIFI est bloqué de façon logicielle, par contre si vous avez un yes après Hard blocked c'est que votre WIFI est bloqué matériellement par un bouton dédié.

Pour activer les cartes Wi-Fi:
sudo rfkill unblock all

Doc > activer_un_wifi_desactive

easybeau

Les mises à jour sont faites!

Voici le retour de :

uname -r -m

4.4.0-131-generic x86_64

nmcli dev wifi

*  SSID          MODE   CHAN  DÉBIT    SIGNAL  BARS  SÉCURITÉ  
   mqj-07563     Infra  1     54 Mo/s  32      ▂▄__  WPA2      
*  Wifi La-Tour  Infra  11    54 Mo/s  30      ▂___            
   UPCA3D92C8    Infra  1     54 Mo/s  22      ▂___  WPA1 WPA2 
   Wifi Admin    Infra  11    54 Mo/s  22      ▂___  WPA1 WPA2 
   cva-88527     Infra  11    54 Mo/s  9       ▂___  WPA2

xubu1957

Bonjour,

Il faut mettre un chiffrement WPA2 comme indiqué au § 1 > [Tuto] Pas de Wi-fi ? Eléments importants à vérifier.

Essaye un canal 1 ou 6 > quel-canal-wi-fi-choisir-pour-optimiser-son-debit.

Montre :

iwconfig

easybeau

iwconfig

lo        no wireless extensions.

wlo1      IEEE 802.11bgn  ESSID:"Wifi La-Tour"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 04:18:D6:8F:79:11   
          Bit Rate=39 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=21/70  Signal level=-89 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:2026  Invalid misc:1307   Missed beacon:0

eno1      no wireless extensions.

xubu1957

Vu :

Au #1 :

Tx excessive retries:2970  Invalid misc:847   Missed beacon:0

#11 :

Tx excessive retries:2026  Invalid misc:1307   Missed beacon:0

J'avais déjà donné les infos dans le message #2.
_ _ _

> les-dix-ennemis-des-reseaux-wi-fi-

> Wi-Fi-connexion-amelioration,

_ _ _

Ta box est.-elle branchée sur une multiprise avec d'autres appareils ?

_ _ _

Tente :

sudo modprobe rt2800pci nohwcrypt=Y

donné dans > [SOLVED] Ubuntu 17.10 HP Envy Realtek RALINK RT3290 WiFi/BT not working after upgrade

easybeau

Merci xubu1957,

J'avais bien lu ta réponse.

Après

sudo modprobe rt2800pci nohwcrypt=Y

Tx excessive retries:206  Invalid misc:344   Missed beacon:0

En fait, ce n'est pas mon wifi, j'y ai accès et il est excellent.

xubu1957

Tu peux passer :

echo "options rt2800pci nohwcrypt=Y" | sudo tee /etc/modprobe.d/rt2800pci.conf

easybeau

Merci!

Le wifi fonctionne mieux, après redémarrage.

iwconfig

lo        no wireless extensions.

wlo1      IEEE 802.11bgn  ESSID:"Wifi La-Tour"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 04:18:D6:8F:79:11   
          Bit Rate=11 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=23/70  Signal level=-87 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:43  Invalid misc:75   Missed beacon:0

eno1      no wireless extensions.

xubu1957

#1 :

 Bit Rate=6.5 Mb/s

#15 :

 Bit Rate=11 Mb/s

 Tx excessive retries:43  Invalid misc:75   Missed beacon:0

Les interférences ont chutées.

easybeau

Oui, il y en a toujours mais elles ont diminué.

#1 :

Tx excessive retries:2970  Invalid misc:847   Missed beacon:0

Maintenant

Tx excessive retries:49  Invalid misc:9   Missed beacon:0

xubu1957

Et sans bouger l'ordi de place ?

easybeau

Oui je l'ai déplacé!!

Le wifi marche mieux mais les interférences... ça va, ça vient

Tx excessive retries:3086  Invalid misc:5529   Missed beacon:0

xubu1957

Il y a eu ce bug Ralink rt5390 unstable connection on ubuntu 16.04.1
> bugs.launchpad.net/ubuntu/+source/linux/+bug/1630459 resté sans suite.

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