NM seem to restart (?) when looking for connections (and maybe it autoconnects). Crashes/Restarts/... with: 1.0.6-0.2.20150813git7e2caa2.fc22 Works with: NetworkManager-1.0.2-1.fc22.x86_64 (one version before) The network-icon (nm-applet?) in KDE flickers (goes away, comes back) in short cycles. Aug 27 13:21:43 localhost NetworkManager[5149]: <info> WiFi hardware radio set enabled Aug 27 13:21:43 localhost NetworkManager[5149]: <info> WWAN hardware radio set disabled Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMVxlanFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMVlanFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMVethFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMTunFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMMacvlanFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMInfinibandFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMGreFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMEthernetFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMBridgeFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMBondFactory (internal) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMWifiFactory (/usr/lib64/NetworkManager/libnm-device-plugin-wifi.so) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMTeamFactory (/usr/lib64/NetworkManager/libnm-device-plugin-team.so) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMAtmManager (/usr/lib64/NetworkManager/libnm-device-plugin-adsl.so) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMWwanFactory (/usr/lib64/NetworkManager/libnm-device-plugin-wwan.so) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Loaded device plugin: NMBluezManager (/usr/lib64/NetworkManager/libnm-device-plugin-bluetooth.so) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> WiFi enabled by radio killswitch; enabled by state file Aug 27 13:21:43 localhost NetworkManager[5149]: <info> WWAN disabled by radio killswitch; disabled by state file Aug 27 13:21:43 localhost NetworkManager[5149]: <info> WiMAX enabled by radio killswitch; disabled by state file Aug 27 13:21:43 localhost NetworkManager[5149]: <info> Networking is enabled by state file Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (virbr0): new Bridge device (carrier: OFF, driver: 'bridge', ifindex: 6) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (virbr0-nic): new Tun device (carrier: OFF, driver: 'tun', ifindex: 7) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (virbr0): bridge port virbr0-nic was attached Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (virbr0-nic): enslaved to virbr0 Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (enp0s25): new Ethernet device (carrier: OFF, driver: 'e1000e', ifindex: 2) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (enp0s25): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0): using nl80211 for WiFi device control Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0): driver supports Access Point (AP) mode Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0): new 802.11 WiFi device (carrier: UNKNOWN, driver: 'iwlwifi', ifindex: 4) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (enp0s20u2u1): link connected Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (enp0s20u2u1): new Ethernet device (carrier: ON, driver: 'ax88179_178a', ifindex: 8) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (enp0s20u2u1): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (lo): link connected Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (lo): new Generic device (carrier: ON, driver: 'unknown', ifindex: 1) Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (enp0s20u2u1): device state change: unavailable -> disconnected (reason 'none') [20 30 0] Aug 27 13:21:43 localhost NetworkManager[5149]: <info> use BlueZ version 5 Aug 27 13:21:43 localhost NetworkManager[5149]: <info> wpa_supplicant running Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0) supports 5 scan SSIDs Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0): supplicant interface state: starting -> ready Aug 27 13:21:43 localhost NetworkManager[5149]: <info> (wlp4s0): device state change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42] Aug 27 13:21:45 localhost audit: <audit-1130> pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-wait-online comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 27 13:21:45 localhost audit: <audit-1131> pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-wait-online comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 27 13:21:45 localhost NetworkManager[5149]: <info> caught SIGTERM, shutting down normally. Aug 27 13:21:45 localhost NetworkManager[5149]: <info> (virbr0): bridge port virbr0-nic was detached Aug 27 13:21:45 localhost NetworkManager[5149]: <info> (virbr0-nic): released from master virbr0 Aug 27 13:21:45 localhost NetworkManager[5149]: <info> (enp0s25): device state change: unavailable -> unmanaged (reason 'unmanaged') [20 10 3] Aug 27 13:21:45 localhost NetworkManager[5149]: <info> (wlp4s0): device state change: disconnected -> unmanaged (reason 'unmanaged') [30 10 3] Aug 27 13:21:45 localhost NetworkManager[5149]: <info> (enp0s20u2u1): device state change: disconnected -> unmanaged (reason 'unmanaged') [30 10 3] Aug 27 13:21:45 localhost NetworkManager[5149]: <info> startup complete Aug 27 13:21:45 localhost NetworkManager[5149]: <info> exiting (success) Aug 27 13:21:45 localhost audit: <audit-1131> pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 27 13:23:24 localhost NetworkManager[5469]: <info> NetworkManager (version 1.0.2-1.fc22) is starting... Aug 27 13:23:24 localhost NetworkManager[5469]: <info> Read config: /etc/NetworkManager/NetworkManager.conf and conf.d: 20-connectivity-fedora.conf Aug 27 13:23:24 localhost NetworkManager[5469]: <info> WEXT support is enabled
Aug 27 13:21:45 localhost NetworkManager[5149]: <info> caught SIGTERM, shutting down normally. Well, something kills NetworkManager from outside. Is what you pasted a full output from journald or is there something else around those lines?
You can find out what sends the signal by auditing sending of signals: auditctl -a exit,always -F arch=b64 -S kill -F a1=1 Then watch the journal for audit messages.
Closing this. Feel free to reopen in case you still believe there's an issue to be fixed.