hi all, when i resume my laptop from suspend my wifi connection doesn't work.
here the journactl output:

dic 03 16:29:31 kaosx-pc NetworkManager[292]: <info>  [1512314971.6234] device (wlp2s0): set-hw-addr: set MAC address to CE:82:01:BA:AE:43 (scanning)

dic 03 16:29:31 kaosx-pc plasmashell[499]: file:///usr/lib/qt5/qml/QtQuick/Controls/Button.qml:99: TypeError: Cannot read property 'width' of null
dic 03 16:29:31 kaosx-pc kdeconnectd[497]: "Interfaccia \"org.freedesktop.DBus.Properties\" inesistente sull'oggetto nel percorso /org/freedesktop/NetworkManager/ActiveCo
dic 03 16:29:31 kaosx-pc kdeinit5[455]: "Interfaccia \"org.freedesktop.DBus.Properties\" inesistente sull'oggetto nel percorso /org/freedesktop/NetworkManager/ActiveConne
dic 03 16:29:31 kaosx-pc NetworkManager[292]: <info> [1512314971.7195] device (wlp2s0): supplicant interface state: disconnected -> inactive
dic 03 16:29:31 kaosx-pc wpa_supplicant[362]: wlp2s0: Reject scan trigger since one is already pending
dic 03 16:29:31 kaosx-pc plasmashell[499]: file:///usr/lib/qt5/qml/QtQuick/Controls/Button.qml:99: TypeError: Cannot read property 'width' of null
dic 03 16:31:05 kaosx-pc wpa_supplicant[362]: wlp2s0: WPS-TIMEOUT Requested operation timed out
dic 03 16:32:56 kaosx-pc kwin_x11[485]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 34650, resource id: 58720763, major code: 18 (ChangeProperty), minor code: 0
dic 03 16:34:49 kaosx-pc plasmashell[499]: file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:323: Unable to assign [undefined] to int
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: Creating the cache for: "applications:org.kde.konsole.desktop"
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: Already in database? true
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: First update : QDateTime(2017-11-28 21:25:02.000 CET Qt::TimeSpec(LocalTime))
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: Last update : QDateTime(2017-11-30 14:12:20.000 CET Qt::TimeSpec(LocalTime))
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: After the adjustment
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: Current score : 3.53085
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: First update : QDateTime(2017-11-28 21:25:02.000 CET Qt::TimeSpec(LocalTime))
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: Last update : QDateTime(2017-11-30 14:12:20.000 CET Qt::TimeSpec(LocalTime))
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: Interval length is 0
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: New score : 4.53085
dic 03 16:34:50 kaosx-pc kactivitymanagerd[590]: ResourceScoreUpdated: "7f9ffae2-db86-4b21-a111-1e9d003ddbf6" "org.kde.libtaskmanager" "applications:org.kde.konsole.deskt
dic 03 16:34:50 kaosx-pc plasmashell[499]: KActivitiesStats( 0x2a653240 ) ResultModelPrivate::onResultScoreUpdated result added: "applications:org.kde.konsole.desktop" s
dic 03 16:34:50 kaosx-pc plasmashell[499]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 44005, resource id: 58720267, major code: 142 (Unknown), minor code: 3
...skipping...

somebody can help me? thanks ;-)