Results 1 to 7 of 7

Thread: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

Hybrid View

  1. #1
    Just burned his ISO
    Join Date
    Jan 2012
    Location
    Lithuania
    Posts
    1

    Default [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    My USB network card find no wireless connections..


    Code:
    root@bt:~# iwlist wlan0 scan
    
    wlan0     No scan results
    I checked if it listed in USB devices:


    Code:
    root@bt:~# lsusb
    Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 006 Device 002: ID 0bda:8197 Realtek Semiconductor Corp. RTL8187B Wireless Adapter
    Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 005 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 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 002: ID 13d3:5702 IMC Networks UVC VGA Webcam
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Then chescked if my iwlist is up to date:
    Code:
    root@bt:~# iwlist --version
    iwlist    Wireless-Tools version 30
              Compatible with Wireless Extension v11 to v22.
    
    Kernel    Currently compiled with Wireless Extension v22.
    
    wlan0     Recommend Wireless Extension v21 or later,
              Currently compiled with Wireless Extension v22.
    Then did this thing...
    Code:
    root@bt:~# cat /etc/network/interfaces
    auto lo
    iface lo inet loopback
    
    auto eth0
    iface eth0 inet static
    
    auto eth1
    iface eth1 inet dhcp
    
    auto eth2
    iface eth2 inet dhcp
    
    auto ath0
    iface ath0 inet dhcp
    
    auto wlan0
    iface wlan0 inet dhcp
    
    root@bt:~# iwconfig
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    wlan0     IEEE 802.11bg  ESSID:off/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=off   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Encryption key:off
              Power Management:on
    But then I run airmon-ng..

    Code:
    root@bt:~# airmon-ng
    
    
    Interface	Chipset		Driver
    
    wlan0		Realtek RTL8187BvB	rtl8187 - [phy2]
    And this:
    Code:
    root@bt:~# ifconfig wlan0
    wlan0     Link encap:Ethernet  HWaddr 00:24:59:30:0a:c9  
              BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

    So, can someone tell me that is the problem? Why it is not picking up any signal?
    Even my cell phone picks few, so that is wrong with my wireless card?

  2. #2
    Just burned his ISO
    Join Date
    Jan 2012
    Posts
    7

    Default Re: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    are you putting it in monitor mode?

    airmon-ng start wlan0

  3. #3
    Just burned his ISO
    Join Date
    Feb 2010
    Location
    South Florida USA
    Posts
    10

    Default Re: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    "Why it is not picking up any signal?
    Even my cell phone picks few, so that is wrong with my wireless card?"

    Does the wireless card get a signal when placed right next to the Router/Access Point? Does the adapter work with a different operating system like Windows or Ubuntu 11.10?? If it has the same problems in other OS's the card could be defective.

    Now the reason I ask if it gets signal when next to the wireless AP is because depending on how your home is built there could be a faraday effect from metal in the walls etc degrading the signal. For example if I go onto our screened patio my cell signal drops 2 bars but once I come back into the house the signal returns to normal.

  4. #4
    Just burned their ISO
    Join Date
    Dec 2010
    Posts
    20

    Default Re: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    its broken my card has the same problem

  5. #5
    Just burned his ISO
    Join Date
    Aug 2011
    Posts
    24

    Default Re: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    I was reading in an Ubuntu forum that this version B works only with the wrapper, with the windows driver on linux. They listed as resolved in this way.
    But I read in the aircrack wiki that is supposedly supported by the mac driver, and that should work out of the box, sadly I think it's just a crappy usb wifi for linux, on windows it's an ok card.

  6. #6
    Just burned his ISO
    Join Date
    Feb 2012
    Posts
    3

    Default Re: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    Go into the WICD manager and set the wireless connection to "Wlan0" or "Wlan1". What I mean is whatever one it's on, change it to the other, worked for me.

  7. #7
    Just burned his ISO
    Join Date
    Feb 2010
    Posts
    5

    Lightbulb Re: [UNSOLVED] Realtek RTL8187 Wireless adapter finds no signal

    Remove cover, desolder USB connector.
    Set oven to 180-190C and 10 minuts.

    If u have hotair, u can add some flex on chip and around rf amplifier.

    It`s always works and It`s not a joke!

Similar Threads

  1. Virtual Box Won't Detect Realtek RTL8187 Wireless Adepter [BT5-R1] KDE
    By Anthraxzor in forum BackTrack 5 Beginners Section
    Replies: 2
    Last Post: 09-13-2011, 07:27 PM
  2. Realtek RT8188CU Wireless LAN 802.11n USB 2.0 Network Adapter
    By slone417 in forum BackTrack 5 Beginners Section
    Replies: 0
    Last Post: 05-18-2011, 10:44 AM
  3. Replies: 10
    Last Post: 04-08-2011, 07:19 PM
  4. realtek RTL8187 b/g usb wireless adapter
    By freeballer in forum OLD BackTrack 4 NON working hardware
    Replies: 9
    Last Post: 09-04-2009, 03:32 PM
  5. Wireless adapter with good signal and injection
    By ghell in forum OLD Newbie Area
    Replies: 15
    Last Post: 09-19-2008, 04:58 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •