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Full Discussion: my wireless usb adapter connect to net but the signal is very weak
Special Forums IP Networking my wireless usb adapter connect to net but the signal is very weak Post 302395924 by rsd220 on Wednesday 17th of February 2010 09:42:36 AM
Old 02-17-2010
my wireless usb adapter connect to net but the signal is very weak
i have wireless usb adapter rtl8187 from micromax company
my proplem is the signal is very weak and i cannot open website

can i increase the signal ?

iwconfig
Code:
 lo        no wireless extensions.
 

 eth0      no wireless extensions.
 

 wmaster0  no wireless extensions.
 

 wlan0     IEEE 802.11bg  ESSID:"Dentistry"   
           Mode:Managed  Frequency:2.412 GHz  Access Point: 00:90:D0:F7:10:72    
           Bit Rate=24 Mb/s   Tx-Power=20 dBm    
           Retry  long limit:7   RTS thr:off   Fragment thr:off
           Power Management:off
           Link Quality=39/70  Signal level=-71 dBm   
           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
           Tx excessive retries:0  Invalid misc:0   Missed beacon:0
 

 eth1      unassociated  Mode:Managed  Frequency=2.412 GHz   
           Access Point: Not-Associated   Bit Rate:0 kb/s   Tx-Power=20 dBm    
           Sensitivity=8/0   
           Retry limit:7   RTS thr:off   Fragment thr:off
           Power Management:off
           Link Quality:0  Signal level:0  Noise level:0
           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
           Tx excessive retries:0  Invalid misc:0   Missed beacon:0

information about my adapter

Code:
      lsusb  
 Bus 002 Device 002: ID 15ca:00c3 Textech International Ltd. Mini Optical Mouse  
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  
 Bus 001 Device 003: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter  
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Code:
   ifconfig -a  
 ifconfig -a: command not found

Code:
          lsmod  
 Module                  Size  Used by  
 binfmt_misc             8356  1  
 ppdev                   6688  0  
 snd_intel8x0           30168  2  
 snd_ac97_codec        101216  1 snd_intel8x0  
 ac97_bus                1532  1 snd_ac97_codec  
 snd_pcm_oss            37920  0  
 snd_mixer_oss          16028  1 snd_pcm_oss  
 snd_pcm                75296  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss  
 snd_seq_dummy           2656  0  
 snd_seq_oss            28576  0  
 snd_seq_midi            6432  0  
 joydev                 10272  0  
 snd_rawmidi            22208  1 snd_seq_midi  
 pcmcia                 36808  0  
 snd_seq_midi_event      6940  2 snd_seq_oss,snd_seq_midi  
 iptable_filter          3100  0  
 arc4                    1660  2  
 snd_seq                50224  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event  
 yenta_socket           24200  1  
 ecb                     2524  2  
 snd_timer              22276  2 snd_pcm,snd_seq  
 ip_tables              11692  1 iptable_filter  
 rsrc_nonstatic         11644  1 yenta_socket  
 snd_seq_device          6920  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq  
 psmouse                56180  0  
 ipw2200               140292  0  
 pcmcia_core            35792  3 pcmcia,yenta_socket,rsrc_nonstatic  
 snd                    59204  14 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device  
 libipw                 43148  1 ipw2200  
 soundcore               7264  1 snd  
 lib80211                6432  2 ipw2200,libipw  
 serio_raw               5280  0  
 rtl8187                50624  0  
 snd_page_alloc          9156  2 snd_intel8x0,snd_pcm  
 x_tables               16544  1 ip_tables  
 shpchp                 32272  0  
 mac80211              181236  1 rtl8187  
 toshiba_acpi           10744  0  
 led_class               4096  1 rtl8187  
 eeprom_93cx6            1916  1 rtl8187  
 cfg80211               93052  2 rtl8187,mac80211  
 lp                      8964  0  
 parport                35340  2 ppdev,lp  
 usbhid                 38208  0  
 fbcon                  36640  72  
 tileblit                2460  1 fbcon  
 font                    8124  1 fbcon  
 bitblit                 5372  1 fbcon  
 softcursor              1756  1 bitblit  
 i915                  221064  3  
 drm                   159584  3 i915  
 i2c_algo_bit            5760  1 i915  
 e100                   32452  0  
 mii                     5212  1 e100  
 ohci1394               29900  0  
 ieee1394               86596  1 ohci1394  
 intel_agp              27484  2 i915  
 agpgart                34988  2 drm,intel_agp  
 video                  19380  1 i915  
 output                  2780  1 video

 

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