Arch Linux

rjuarezp

Member

Registered: 2008-11-08

Posts: 2

wlan working very slow

Hi everybody,

since a couple of years I am a very happy user of Archlinux. I never had big problems or, at least, I always could solve them with the topics posted on the forum.

Since some days (maybe after an update), my wlan connection is became very slow. I have an old Realtek card (MA521) which was always connecting at 11Mbps

03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8180L 802.11b MAC (rev 20)

But since a couple of days, the card is only able to connect at 1Mbps. Here you are the output of iwconfig wlan0

wlan0     IEEE 802.11b  ESSID:"WLAN_FeryRiqui"
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:1A:4F:92:B8:00
          Bit Rate=1 Mb/s   Tx-Power=27 dBm
          Retry min limit:7   RTS thr:off   Fragment thr:off
          Encryption key:6C61-7572-6164-656C-6D61-7239-39   Security mode:open
          Power Management:off
          Link Quality=127/100  Signal level=-129 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Here you are also the output of lsmod

Module                  Size  Used by
nls_cp437               5444  0
vfat                   11108  0
fat                    51812  1 vfat
radeon                366208  2
drm                   154656  3 radeon
nfsd                  255276  9
exportfs                4260  1 nfsd
nfs                   294576  0
lockd                  72556  2 nfsd,nfs
fscache                44688  1 nfs
nfs_acl                 2884  2 nfsd,nfs
auth_rpcgss            38112  2 nfsd,nfs
sunrpc                190432  13 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
ipv6                  277876  28
fan                     4392  0
snd_seq_dummy           2696  0
snd_seq_oss            31168  0
snd_seq_midi_event      7012  1 snd_seq_oss
snd_seq                53744  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          6768  3 snd_seq_dummy,snd_seq_oss,snd_seq
ndiswrapper           211516  0
slhc                    5796  0
snd_pcm_oss            40352  0
arc4                    1732  2
ecb                     2788  2
snd_mixer_oss          17540  1 snd_pcm_oss
rtl8180                29988  0
mac80211              182976  1 rtl8180
eeprom_93cx6            1796  1 rtl8180
cfg80211               67364  2 rtl8180,mac80211
iTCO_wdt               10952  0
video                  19832  0
thinkpad_acpi          67156  0
rfkill                 10640  1 thinkpad_acpi
ppdev                   7656  0
led_class               3976  1 thinkpad_acpi
snd_intel8x0           30592  1
snd_intel8x0m          14192  1
usbhid                 40608  0
snd_ac97_codec        106088  2 snd_intel8x0,snd_intel8x0m
ac97_bus                1540  1 snd_ac97_codec
hid                    42496  1 usbhid
pcmcia                 36268  0
cpufreq_ondemand        7672  1
usb_storage            51520  0
snd_pcm                73512  4 snd_pcm_oss,snd_intel8x0,snd_intel8x0m,snd_ac97_codec
output                  2884  1 video
iTCO_vendor_support     3080  1 iTCO_wdt
parport_pc             36964  1
shpchp                 34328  0
battery                10984  0
snd_timer              21100  2 snd_seq,snd_pcm
thermal                13888  0
ac                      4360  0
intel_agp              27484  1
psmouse                59644  0
irtty_sir               5540  0
nvram                   6928  1 thinkpad_acpi
acpi_cpufreq            8624  0
i2c_i801                9656  0
snd                    58436  14 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_intel8x0m,snd_ac97_codec,snd_pcm,snd_timer
i2c_core               22776  2 drm,i2c_i801
soundcore               6784  1 snd
snd_page_alloc          8876  3 snd_intel8x0,snd_intel8x0m,snd_pcm
sir_dev                11688  1 irtty_sir
pci_hotplug            28964  1 shpchp
lp                      9700  0
agpgart                32756  2 drm,intel_agp
button                  5556  0
parport                34380  3 ppdev,parport_pc,lp
serio_raw               5704  0
pcspkr                  2372  0
evdev                  10176  6
sg                     27928  0
freq_table              3716  2 cpufreq_ondemand,acpi_cpufreq
processor              35864  2 acpi_cpufreq
rtc_cmos               11212  0
rtc_core               18048  1 rtc_cmos
rtc_lib                 2500  1 rtc_core
ext3                  134380  3
jbd                    48504  1 ext3
mbcache                 7080  1 ext3
nsc_ircc               17040  0
yenta_socket           25136  3
e100                   33420  0
irda                  126776  2 sir_dev,nsc_ircc
uhci_hcd               23540  0
rsrc_nonstatic         12292  1 yenta_socket
pcmcia_core            35128  3 pcmcia,yenta_socket,rsrc_nonstatic
floppy                 55780  0
mii                     4804  1 e100
crc_ccitt               1700  1 irda
sd_mod                 27328  5
sr_mod                 16612  0
cdrom                  36032  1 sr_mod
usbcore               150160  5 ndiswrapper,usbhid,usb_storage,uhci_hcd
ata_piix               23080  4
ata_generic             4680  0
pata_acpi               4228  0
libata                168044  3 ata_piix,ata_generic,pata_acpi
scsi_mod              110708  5 usb_storage,sg,sd_mod,sr_mod,libata

Also my network configuration /etc/network.d/wlan

CONNECTION="wireless"
DESCRIPTION="A simple WEP encrypted wireless connection"
INTERFACE=wlan0
SCAN="yes"
SECURITY="wep"
ESSID="WLANname"
KEY="XXXXXXXXXXXXXXXXXXXXXXXXXX"
DHCLIENT="yes"
IP="dhcp"
TIMEOUT="30"
DHCP_OPTIONS="-d"

Any ideas? Thanks very much for your help.

Best regards,

Ricardo.

muramasa

Member

From: Vancouver, Canada

Registered: 2007-01-08

Posts: 16

Website

Re: wlan working very slow

You want to set the rate to 54 Mb/s. You can do this adding IWCONFIG="rate 54M" to your network profile and then reconnecting.