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[DWA-125] connexion très lente [Résolu]
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tjs
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Joined: 12 Feb 2012
Posts: 4
Location: Montreal

PostPosted: Tue Feb 28, 2012 12:09 am    Post subject: [DWA-125] connexion très lente [Résolu] Reply with quote

Bonjour à tous.

J'ai récemment acheté une carte sans-fil USB (DWA-125) la connexion est très très lente (~5KB/sec).
La seul solution que j'ai trouvé sur Google est de fermer le powersaving (iwconfig wlan0 power off). Cependant, cela
n'a rien changé pour moi.

Voici de l'information sur ma machine qui pourrait être utile:

Code:

localhost# uname -a
Linux localhost 3.2.1-gentoo-r2 #2 SMP Sun Feb 26 20:44:15 EST 2012 x86_64 Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz GenuineIntel GNU/Linux


Lorsque je ping mon routeur:

Code:
localhost# ping 192.168.20.1
PING 192.168.20.1 (192.168.20.1) 56(84) bytes of data.
64 bytes from 192.168.20.1: icmp_req=3 ttl=64 time=4.34 ms
64 bytes from 192.168.20.1: icmp_req=6 ttl=64 time=4.54 ms
64 bytes from 192.168.20.1: icmp_req=7 ttl=64 time=3.57 ms
64 bytes from 192.168.20.1: icmp_req=8 ttl=64 time=3.55 ms
64 bytes from 192.168.20.1: icmp_req=9 ttl=64 time=3.73 ms
^C
--- 192.168.20.1 ping statistics ---
9 packets transmitted, 5 received, 44% packet loss, time 8019ms
rtt min/avg/max/mdev = 3.554/3.949/4.547/0.418 ms


Code:
localhost# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 07d1:3c16 D-Link System DWA-125 Wireless N 150 Adapter(rev.A2) [Ralink RT2870]
Bus 001 Device 003: ID 03f0:0e2a Hewlett-Packard
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 004 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver


Code:

localhost# lsmod | grep rt2800usb
rt2800usb              13217  0
rt2800lib              35620  1 rt2800usb
rt2x00usb               7658  1 rt2800usb
rt2x00lib              28795  3 rt2800usb,rt2800lib,rt2x00usb
usbcore               121430  10 rt2800usb,rt2x00usb,hid_sony,sl811_hcd,usbhid,ohci_hcd,uhci_hcd,usb_storage,ehci_hcd



Et ma connexion au routeur:

Code:

localhost# iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"Cellule-1" 
          Mode:Managed  Frequency:2.422 GHz  Access Point: 00:0C:42:49:44:C1   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:on
          Link Quality=55/70  Signal level=-55 dBm 
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:36   Missed beacon:0


Lorsque j'ai fait configuré mon kernel j'ai remarqué que le module rt2800usb est encore expérimental;
C'est peut-être ça qui cause le problème.

Merci en avance :)


Last edited by tjs on Fri Mar 09, 2012 9:22 pm; edited 1 time in total
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d2_racing
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PostPosted: Tue Feb 28, 2012 3:55 am    Post subject: Reply with quote

Salut, pourrais-tu essayer avec les derniers git-sources ?

Ça va peut-être t'aider :P

Content de voir une personne du Québec.
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tjs
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Joined: 12 Feb 2012
Posts: 4
Location: Montreal

PostPosted: Fri Mar 09, 2012 9:23 pm    Post subject: Reply with quote

J'ai installé le kernel git-sources (3.3.0-rc5) et la connexion semble déjà mieux. Au lieu de 5KB/Sec, j'ai une vitesse de 150KB.

Merci :D
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