Bonjour,
Depuis quelques mois, la vitesse de mon interface Wi-Fi est bloquée sur 6Mbs. Je suis sur Kubuntu 19.04 et une autre machine (Kubuntu 18.10) parvient sans problème à se connecter en 54Mbs.
Ce que j'ai tenté :
$ sudo iwconfig wlp2s0 rate 24M
$ iwconfig wlp2s0
wlp2s0 IEEE 802.11 ESSID:"NETGEAR-5G"
Mode:Managed Frequency:5.22 GHz Access Point: E0:91:F5:04:6F:5D
Bit Rate=6 Mb/s Tx-Power=30 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=61/70 Signal level=-49 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:62 Missed beacon:0
Une idée ?
À noter que j'utilise en parallèle une connexion filaire. Mais même sans, la vitesse reste désespérement sur 6Mbs.
$ sudo iw wlp2s0 scan
BSS e0:91:f5:04:6f:5d(on wlp2s0) -- associated
TSF: 1425485137455 usec (16d, 11:58:05)
freq: 5220
beacon interval: 100 TUs
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -51.00 dBm
last seen: 4832 ms ago
Information elements from Probe Response frame:
SSID: NETGEAR-5G
Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0
DS Parameter set: channel 44
RSN: * Version: 1
* Group cipher: CCMP
* Pairwise ciphers: CCMP
* Authentication suites: PSK
* Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
HT capabilities:
Capabilities: 0x1ce
HT20/HT40
SM Power Save disabled
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 3839 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 44
* secondary channel offset: above
* STA channel width: any
* RIFS: 1
* HT protection: no
* non-GF present: 0
* OBSS non-GF present: 0
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WPS: * Version: 1.0
* Wi-Fi Protected Setup State: 2 (Configured)
* Response Type: 3 (AP)
* UUID: 00000000-0000-1000-0000-e091f5046f5b
* Manufacturer: Netgear, Inc.
* Model: WNDR3700
* Model Number: V1H1
* Serial Number: none
* Primary Device Type: 6-0050f204-1
* Device name: WNDR3700(Wireless AP)
* Config methods: Ethernet, Label, PBC
* RF Bands: 0x3