thespiritbomber Posted February 23, 2012 Share Posted February 23, 2012 I'm having trouble with getting airodump-ng to work on the right channel. No matter what channel I set it too, it always says the fixed channel is -1. I'm using the ALFA USB WiFi AWUS036H and have successfully cracked WEP several times but can't ever get a 4-way handshake when trying to crack WPA/WPA2. I assume it has to do with this channel handling problem. I've searched just about everywhere for solutions to this problem but still haven't solved it. I made sure there were no processes using wlan1 but no matter what I do I just can't get airodump-ng to work on the channel I want it to. Any solutions? Quote Link to comment Share on other sites More sharing options...
Mr-Protocol Posted February 23, 2012 Share Posted February 23, 2012 What OS are you using? Quote Link to comment Share on other sites More sharing options...
thespiritbomber Posted February 23, 2012 Author Share Posted February 23, 2012 What OS are you using? Ubuntu 11.10. By the way, I tested it on Backtrack 5 and it works fine. Quote Link to comment Share on other sites More sharing options...
Mr-Protocol Posted February 23, 2012 Share Posted February 23, 2012 You need to disable wireless networking services from taking over. Go to your wifi icon on the desktop, and disable networking there. Then try again. Quote Link to comment Share on other sites More sharing options...
True_Grift Posted February 28, 2012 Share Posted February 28, 2012 The -1 error sadly has a bunch of different causes, it could be other wireless processes interfering or a driver issue, I've seen fixes for both versions of that problem. I had that problem myself with Ubuntu, and the newest version fixed it for me. Some of the tools in the aircrack-ng suite have an 'Ignore negative one' option, maybe you could try that... Quote Link to comment Share on other sites More sharing options...
thespiritbomber Posted March 20, 2012 Author Share Posted March 20, 2012 Yeah, I tried the --ignore-negative-one command but I still had trouble getting a WPA handshake. By the way, the wifi card works perfect on BT5, so it must be something wrong in Ubuntu that's messing up getting the handshake. Quote Link to comment Share on other sites More sharing options...
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