> Could you post the output of dmesg | grep iwlwifi Thanks Brandon and everyone -- to skip reboot I hope it is sufficient to execute sudo grep iwlwifi [CentOSpartition]/var/log/messages (you can see several reboots and my attempts to experiment) Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 2230 BGN, REV=0xC8 Apr 12 16:16:48 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 12 16:16:48 localhost NetworkManager[1033]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 12 16:16:48 localhost NetworkManager[1033]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 12 16:22:02 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to disable radio. Apr 12 16:22:12 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to enable radio. Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 2230 BGN, REV=0xC8 Jun 1 07:03:35 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Jun 1 07:03:36 localhost NetworkManager[1031]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Jun 1 07:03:36 localhost NetworkManager[1031]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 12 18:22:21 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to disable radio. Apr 12 18:22:25 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to enable radio. Apr 12 19:28:13 localhost NetworkManager[20019]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 12 19:28:13 localhost NetworkManager[20019]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 12 19:29:58 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to disable radio. Apr 12 19:30:06 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to enable radio. Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 2230 BGN, REV=0xC8 Apr 13 13:04:56 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 13:04:56 localhost NetworkManager[1031]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 13 13:04:56 localhost NetworkManager[1031]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 13 13:05:50 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to disable radio. Apr 13 13:05:57 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to enable radio. Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 2230 BGN, REV=0xC8 Apr 13 13:06:36 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 13:06:37 localhost NetworkManager[1028]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 13 13:06:37 localhost NetworkManager[1028]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 2230 BGN, REV=0xC8 Apr 13 14:21:58 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:21:58 localhost NetworkManager[1031]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 13 14:21:58 localhost NetworkManager[1031]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 13 14:29:33 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:29:33 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 14:29:33 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:29:33 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 14:41:12 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to disable radio. Apr 13 14:41:12 localhost kernel: iwlwifi 0000:08:00.0: Not sending command - RF KILL Apr 13 14:41:12 localhost kernel: iwlwifi 0000:08:00.0: Not sending command - RF KILL Apr 13 14:41:21 localhost kernel: iwlwifi 0000:08:00.0: RF_KILL bit toggled to enable radio. Apr 13 14:49:13 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:49:13 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 14:49:14 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:49:14 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 14:54:21 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:54:21 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 14:54:22 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 14:54:22 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 15:15:50 localhost NetworkManager[8313]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 13 15:15:50 localhost NetworkManager[8313]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 3) Apr 13 15:19:32 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 15:19:32 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 15:19:32 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 15:19:32 localhost kernel: iwlwifi 0000:08:00.0: Radio type=0x2-0x0-0x0 Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: can't disable ASPM; OS doesn't have ASPM control Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUG disabled Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEBUGFS enabled Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: Detected Intel(R) Centrino(R) Wireless-N 2230 BGN, REV=0xC8 Apr 13 15:25:08 localhost kernel: iwlwifi 0000:08:00.0: L1 Enabled - LTR Disabled Apr 13 15:25:09 localhost NetworkManager[1029]: <info> rfkill0: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0/ieee80211/phy0/rfkill0) (driver iwlwifi) Apr 13 15:25:09 localhost NetworkManager[1029]: <info> (wlp8s0): new Generic device (carrier: OFF, driver: 'iwlwifi', ifindex: 4) On Thu, Apr 14, 2016 at 1:17 AM, Brandon Vincent <Brandon.Vincent at asu.edu> wrote: > On Wed, Apr 13, 2016 at 7:42 PM, Philip V <pv.bugzilla+centos at gmail.com> wrote: >> 1. How do I get this working? I am happy to work with command line tools. > > Could you post the output of: > > dmesg | grep iwlwifi > > Brandon Vincent > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos