How to fix warning failed to associate essid in reaver
Note: Need to download two libraries libpcap0.8_1.4.0-2_amd64.deb and libpcap0.8-dev_1.4.0-2_amd64.deb. 1. Open terminal and type the following command: wget http://mirrors.kernel.org/ubuntu/pool/main/libp/libpcap/libpcap0.8_1.4.0-2_amd64.debhttp://mirrors.kernel.org/ubuntu/pool/main/libp/libpcap/libpcap0.8-dev_1.4.0-2_amd64.deb 2. Then install both the libraries by: sudo dpkg -i libpcap0.8_1.4.0-2_amd64.deb libpcap0.8-dev_1.4.0-2_amd64.deb 3. Here if you have 32bit os then just replace the amd64 with i386 or if you don't no then type in terminal: uname -o and hit enter. After installing this libraries your problem will be fixed. New Method: To quickly fix this issue simply update to the latest version by typing $: apt-get update