Aireplayng is used to inject frames. The primary function is to generate traffic for the later use in aircrackng for cracking the WEP and WPAPSK keys. Im having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible. What are the steps to. Fixing WiFi Issues in OS X El Capitan. Fixing Wi Fi Issues in OS X El Capitan. Though Apple has largely resolved the wi fi issues that persisted in some Macs with prior OS X releases, some users with OS X El Capitan may encounter wireless networking issues after updating to the latest OS X release. Typically the wi fi problems are in the form of dropping connections or strangely slow speeds, and the good news is theyre usually an easy fix. For most Mac users who are experiencing issues with wi fi connections in OS X El Capitan, simply ditching old preference files, followed by creating a new network location with custom DNS settings and an MTU change is enough to resolve whatever wi fi problems they may have had. This is a multi step process but not particularly difficult. Broadcom Bcm43xx Drivers For Mac' title='Broadcom Bcm43xx Drivers For Mac' />Youre going to be deleting a few system level preference files and creating a new network location. Before getting started, you should start and complete a backup of the Mac with Time Machine. Dont skip backups. Canape Software. Trash Existing Wi Fi Preferences in OS X to Start Fresh. Create a new folder on your Desktop called wifi prefs backup or something obvious. Turn off Wi Fi from the menu item in the upper right corner of OS XGo to the Finder the smiley face icon in the Dock, and hit CommandShiftG to bring up the Go To Folder command, choose the following path exactly LibraryPreferencesSystem. ConfigurationHit return to go to that folder, then locate and select the following files com. Broadcom Bcm43xx Drivers For Mac' title='Broadcom Bcm43xx Drivers For Mac' />Network. Interfaces. Move all of these files into the folder you created in step 1 on the desktop you can also delete them if youre confident and have made a backupReboot the Mac. Turn on Wi Fi from the wireless network menu again in the upper right corner of OS XIf your wi fi works now, great, but for most users, youre not quite finished yet Now you need to create a new custom network location. Create a New Wi Fi Network Location with Custom DNSQuit any open apps that are using wi fi or networking Chrome, Safari, Mail, etcGo to the Apple menu and select System PreferencesChoose the Network control panel, then choose Wi Fi from the list on the left side. Click the Location menu and select Edit Locations, then click the plus button to create a new location, giving the new location an easily identifiable name like Fixing My Wi. Fi and click Done to add it. Next to Network Name join the wi fi network and authenticate with the router password as usual. Next, select the Advanced button in the lower corner of Network preferences, then go to the TCP IP tab, choose Renew DHCP LeaseNext go to the DNS tab, and on the left side DNS Servers list, click the plus button to add a new DNS server I use 8. Google DNS but you can choose whatever you want. Next, choose the Hardware tab, then next to Configure choose ManuallyChange MTU to Custom and set the MTU number to 1. OKFinally, choose the Apply button to set your network changesIf youre not sure what DNS to use, you can find the fastest DNS servers for your situation with a benchmarking utility. Typically the fastest servers are Google DNS and Open. DNS, but results may vary per region. Now wireless connectivity should be working flawlessly in OS X, and back at full speed. Try things out by navigating around the web, doing a speed test, and just using the internet as usual. The solution outlined above almost always works to resolve wireless networking issues in OS X, particularly if they occur after updating to a new version of system software or a point release. Additional Wi Fi Troubleshooting Tips. If youre still having trouble with wi fi in OS X 1.