With CentOS 7.2 a laptop wireless card is recognized in dmesg, but nonfunctional. Toggling the hardware wifi switch causes the Bluetooth icon to appear and disappear. The network configuration window shows the Wireless tab greyed out. Rebooting with the bluetooth enabled does not help. It appears the appropriate driver is iwlwifi, which is what works in Fedora and appears to be available and installed in CentOS. lspci gives 08:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4) 1. How do I get this working? I am happy to work with command line tools. 2. Are there other packages I need? I installed wireless-tools, and tried to fiddle with iwconfig and NetworkManager to no avail. iwconfig does seem to interact with the wifi device. 3. Is there documentation I should be following to understand/troubleshoot networking support? https://wiki.centos.org/HowTos/Laptops/Wireless does not document the iwlwifi driver.