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Thread: Airodump-ng has stopped showing signal strength

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  1. #1
    Junior Member
    Join Date
    Jan 2010
    Posts
    27

    Default Airodump-ng has stopped showing signal strength

    Hello fellas.
    So, I updated BT5 to BT5 r1 and now airodump-ng stopped showing signal strength using zd1211rw chipset wifi adapter, rtl8187 works fine.

    rtl8187 is wlan0 is mon0
    zd1211rw is wlan1 is mon0

    #: airmon-ng start wlan0
    Code:
    Interface	Chipset		Driver
    
    wlan0		Realtek RTL8187L	rtl8187 - [phy0]
    				(monitor mode enabled on mon0)
    wlan1		Zydas zd1211b	zd1211rw - [phy1]
    #: airmon-ng start wlan1
    Code:
    Interface	Chipset		Driver
    
    wlan0		Realtek RTL8187L	rtl8187 - [phy0]
    wlan1		Zydas zd1211b	zd1211rw - [phy1]
    				(monitor mode enabled on mon1)
    mon0		Realtek RTL8187L	rtl8187 - [phy0]
    Now, let's scan some APs

    #: airodump-ng mon0
    Code:
     CH 10 ][ Elapsed: 4 s ][ 2011-10-10 06:26                                         
                                                                                                                                                                                       
     BSSID              PWR  Beacons    #Data, #/s  CH  MB   ENC  CIPHER AUTH ESSID                                                                                                    
                                                                                                                                                                                       
     00:[CENSORED]  -36        8        0    0  10  54e  WPA2 CCMP   PSK  censored                                                                                            
     40:[CENSORED]  -55        9       15    0   2  54e  WPA2 CCMP   PSK  censored                                                                            
     00:[CENSORED]  -61       10        0    0   3  54e. WPA2 CCMP   PSK  censored                                                                                                  
                                                                                                                                                                                       
     BSSID              STATION            PWR   Rate    Lost  Packets  Probes                                                                                                         
                                                                                                                                                                                        
     40:[CENSORED]  00:[CENSORED]   -1   54e- 0      0       15
    -36% is 100% - 36% = 64% signal strength

    Now, let's use zd1211 adapter

    #: airodump-ng mon1

    Code:
     CH  1 ][ Elapsed: 4 s ][ 2011-10-10 06:28                                         
                                                                                                                                                                                       
     BSSID              PWR  Beacons    #Data, #/s  CH  MB   ENC  CIPHER AUTH ESSID                                                                                                    
                                                                                                                                                                                       
     00:[CENSORED]    0       11        0    0  10  54e  WPA2 CCMP   PSK  [CENSORED]                                                                                            
     00:[CENSORED]    0       12        0    0   3  54e. WPA2 CCMP   PSK  [CENSORED]                                                                                                  
     40:[CENSORED]    0       10        0    0   2  54e  WPA2 CCMP   PSK  [CENSORED]                                                                              
                                                                                                                                                                                       
     BSSID              STATION            PWR   Rate    Lost  Packets  Probes
    Zero, zero, zero.

    I really need to zd1211 work, becouse it's my main adapter and it has antenna, so it works better than rtl8187.
    How to fix it?
    Also, how do I change the way he's showing signal strength, from -36% to 64%?

    I've tried to download zd1211 driver and install it manually, doesn't help. In fact, drivers were the same, byte to byte.

    Who's not doing he's job, is it aircrack-ng fail?

  2. #2
    Just burned his ISO sasanet's Avatar
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    Default Re: Airodump-ng has stopped showing signal strength

    did u try to download and install latest compat-wireless drivers?

  3. #3
    Junior Member
    Join Date
    Jan 2010
    Posts
    27

    Default Re: Airodump-ng has stopped showing signal strength

    Quote Originally Posted by sasanet View Post
    did u try to download and install latest compat-wireless drivers?
    Wow, it takes a lot of time to make && make install it
    Done, still zero, zero, zero.

  4. #4
    Just burned his ISO sasanet's Avatar
    Join Date
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    Location
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    Default Re: Airodump-ng has stopped showing signal strength

    Hy,
    I'm not shore if madwifi drivers have support for your chipset, so you may try to browse for madwifi's website and if it does and download.
    as far as I know madwifi is best for ath9, ath5 and some other integrated cards.

    u may also check your vendor's webpage, maybe they got something new.
    or reinstall backtrack to version 5 or 4.
    good luck.

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