Slow connection with AWUS036H on BT5

[lost17]

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:

#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)

#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

[albatr0ss]

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

--
albatr0ss

[lost17]

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

[Phil171]

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 !
;-)

[lost17]

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 :-)

[reff67]

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