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General Tech => Hardware => : 4p3x August 16, 2012, 06:05:10 AM

: alfa usb wifi problems
: 4p3x August 16, 2012, 06:05:10 AM

Hi I just got the usb wifi alfa AWUSO36NHR and it's not working properly.. it will randomly disconnect and won't pick up any networks.. I have to plug it in and unplug it, and airmon tells me the chipset is unknown, any help?

: Re: alfa usb wifi problems
: Kulverstukas August 16, 2012, 08:53:26 AM

Moved to hardware.
Did you install the drivers for it? What OS are you using?

: Re: alfa usb wifi problems
: Zer0Flag August 16, 2012, 02:25:15 PM

I have the same problem with my NHR but if you check if the injections are working it should work. Maybe try compat-wireless drivers ? The last time I tested them they didn´t seem to work(http://linuxwireless.org/download/compat-wireless-2.6/ (http://linuxwireless.org/download/compat-wireless-2.6/)). May also check out this thread: http://www.backtrack-linux.org/forums/showthread.php?t=45323&page=5 (http://www.backtrack-linux.org/forums/showthread.php?t=45323&page=5)

:

root@bt:~# aireplay-ng -9 -i mon0 wlan1
14:24:02  Trying broadcast probe requests...
14:24:04  No Answer...
14:24:04  Found 1 AP
14:24:04  Trying directed probe requests...
14:24:04  00:01:E3:**:**:** - channel: 8 - '******'
14:24:05  Ping (min/avg/max): 3.509ms/16.190ms/45.019ms Power: -66.55
14:24:05  29/30:  96%
14:24:05  Injection is working!
14:24:05  Trying card-to-card injection...
14:24:05  Attack -0:           OK
14:24:05  Attack -1 (open):    OK
14:24:05  Attack -1 (psk):     OK
14:24:05  Attack -2/-3/-4/-6:  OK
14:24:05  Attack -5/-7:        OK

~Zer0Flag

: Re: alfa usb wifi problems
: 4p3x August 16, 2012, 02:59:03 PM

I'm using backtrack 5 r3. I tried compact wireless drivers. It picks up internet but backtrack isnt detecting its chipset and it sometimes disconnects for no reason and then won't pick up any networks and my router is literally about 8 feet away into the next room

: Re: alfa usb wifi problems
: 4p3x August 16, 2012, 03:04:00 PM

Interface   Chipset      Driver

wlan0      Unknown    rtl8192cu - [phy2]

it seems it only disconnects when I put it into monitor mode

: Re: alfa usb wifi problems
: Zer0Flag August 16, 2012, 03:33:37 PM

This is a known issue with the NHR. Seems there are no drivers supporting this fully right now cause its the latest alfa stick.
 
A better choice would be the NH :)

~Zer0Flag

: Re: alfa usb wifi problems
: 4p3x August 16, 2012, 05:11:05 PM

well after trying different things people said to do I ran a reboot and typed in my username and password and startx and bam.. black screen for about 10 minutes until I get an error.. anyway to just reset backtrack as if I just installed it