Hi folks I'm having some hard time troubleshooting a Wifi issue Centos7, fully up to date, with an Intel Dual Band 3160 Wireless adapter After the machine boots, the Wifi connects and runs ok for a few hours After this, the Wifi just stops [root at orbex ~]# lspci -v | grep Wireless 04:00.0 Network controller: Intel Corporation Wireless 3160 (rev 83) Subsystem: Intel Corporation Dual Band Wireless AC 3160 [root at orbex ~]# grep iwlwifi messages Nov 10 03:44:02 orbex kernel: iwlwifi 0000:04:00.0: Error sending SCAN_OFFLOAD_REQUEST_CMD: enqueue_hcmd failed: -5 Nov 10 03:44:02 orbex kernel: iwlwifi 0000:04:00.0: Scan failed! ret -5 Nov 10 03:44:02 orbex kernel: iwlwifi 0000:04:00.0: Failed to wake NIC for hcmd 100s of similar lines Nov 10 14:55:01 orbex kernel: iwlwifi 0000:04:00.0: Failed to wake NIC for hcmd Nov 10 14:55:01 orbex kernel: iwlwifi 0000:04:00.0: Error sending SCAN_OFFLOAD_REQUEST_CMD: enqueue_hcmd failed: -5 Nov 10 14:55:01 orbex kernel: iwlwifi 0000:04:00.0: Scan failed! ret -5 Nov 10 14:56:37 orbex kernel: iwlwifi 0000:04:00.0: loaded firmware version 17.3216344376.0 op_mode iwlmvm Nov 10 14:56:37 orbex kernel: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 3160, REV=0x164 Nov 10 14:56:37 orbex kernel: iwlwifi 0000:04:00.0: base HW address: 34:de:1a:f0:c2:fb Nov 10 14:56:38 orbex NetworkManager[1154]: <info> [1573394198.8523] rfkill1: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.3/0000:04:00.0/ieee80211/phy0/rfkill1) (driver iwlwifi) [root at orbex log]# Any advice? Thanks! -- Patrick Derwael Rue de la fontaine, 3 4210 Burdinne Tél:+32.(0)479.80.50.79