Output of dmesg / messages is found in a previous email (buried in the message thread) https://lists.centos.org/pipermail/centos/2016-April/158703.html Any advice? On Wed, Apr 13, 2016 at 10:42 PM, Philip V <pv.bugzilla+centos at gmail.com> wrote: > 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.