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Thread: Slow connection with AWUS036H on BT5

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  1. #1
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    Apr 2012
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    Default Slow connection with AWUS036H on BT5

    Hi all!

    I am new on Backtrack and I recently bought the Alfa AWUS036H adapter, it works fine with airodump-ng (monitor mode) but it really sucks when I browse the web, is this normal?

    I am on Backtrack 64bits with Gnome fresh installed on HDD

    Here is my download speed:
    - on Backtrack, with my AWUS036H, I can only reach 0.25Mbps
    - on Windows, with my AWUS036H, about 0.25Mbps too ; with my old Netgear adapter, I can get over 4Mbps

    I tried with both the indoor and the outdoor antenna but nothing really changes when I browse the web...

    Here is some outputs which might help:
    Code:
    #ifconfig wlan0
    wlan0   Link encap:Ethernet  HWaddr :xx:xx:xx:xx:xx  
              UP 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)
    Code:
    #iwconfig wlan0
    wlan0  IEEE 802.11bg  ESSID:"virginmedia3456597"  
              Mode:Managed  Frequency:2.412 GHz  Access Point: xx:xx:xx:xx:xx:xx   
              Bit Rate=48 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Encryption key:off
              Power Management:off
              Link Quality=60/70  Signal level=-50 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:5  Invalid misc:5   Missed beacon:0
    The bit rate, link quality and signal level are correct so I don't understand where is the problem. I also made some research and found that the Tx-Power can be changed but I don't really how should I change it. So, for now, I chose to keep the default setting and I'm waiting for your advice.

    Do you how can I improve my download and upload rate using my AWUS036H?

    Thanks!

    PS: I'm sorry if my english is average, I'm Fench
    Last edited by lost17; 04-18-2012 at 11:38 AM.

  2. #2
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    Default Riferimento: Slow connection with AWUS036H on BT5

    I don't think the problem is the TX power... perhaps you are simply too near to the AP.

    --
    albatr0ss

  3. #3
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    Default Re: Slow connection with AWUS036H on BT5

    Yes, that was. I discovered it a few days ago. Thanks for the reply.

  4. #4
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    Default Re: Slow connection with AWUS036H on BT5

    TX Power adjustment is used only to create a higher power WiFi hotspot than authorized on this Alfa product.
    Phil
    Sorry if my English is medium, I'm french too !
    ;-)

  5. #5
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    Default Re: Slow connection with AWUS036H on BT5

    Quote Originally Posted by Phil171 View Post
    TX Power adjustment is used only to create a higher power WiFi hotspot than authorized on this Alfa product.
    Phil
    Sorry if my English is medium, I'm french too !
    ;-)
    Oh really?! Then thanks for that :-)

  6. #6
    Just burned his ISO
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    Dec 2009
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    Default Re: Slow connection with AWUS036H on BT5

    try this it helped me with no internet or slow Internet
    on my alfa AWUS036H

    ifconfig wlan1 down #or wlan0, whichever your card is on. use "ifconfig -a" to find out
    iw reg set BO #sets the country code to boliva so you can use max power of the alfa card
    iwconfig wlan1 txpower 30 #sets your card to 30db max power the card uses
    iwconfig wlan1 rate 1M #this should fix the no internet or very slow internet problem
    ifconfig wlan1 up

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