Hi All, I upgraded my desktop OS from Fedora 17 to Fedora 20. It is a simple desktop, used for general proposes. I used Fedora 17 for a long time and "disconnection problems" did not happened .But since I moved to Fedora 20 I'm noticing a lot disconnections.
What could be happening ? Additional information: I if I switch to a live OS (i,e Ubuntu, Kali, Fedora 17) these problem do not happen. I know that it is not very smart, but I tried to used static IP, but no luck, I keep disconnecting. I have pasted some logs: Sep 7 15:53:26 localhost kernel: [ 497.303607] e1000e: em1 NIC Link is Down Sep 7 15:53:26 localhost NetworkManager[561]: <info> (em1): link disconnected (deferring action for 4 seconds) Sep 7 15:53:30 localhost NetworkManager[561]: <info> (em1): link disconnected (calling deferred action) Sep 7 15:53:30 localhost NetworkManager[561]: <info> (em1): device state change: activated -> unavailable (reason 'carrier-changed') [100 20 40] Sep 7 15:53:30 localhost NetworkManager[561]: <info> (em1): deactivating device (reason 'carrier-changed') [40] Sep 7 15:53:31 localhost NetworkManager[561]: <info> (em1): canceled DHCP transaction, DHCP client pid 1759 Sep 7 15:53:31 localhost avahi-daemon[440]: Withdrawing address record for 172.16.1.14 on em1 Sep 7 15:53:31 localhost avahi-daemon[440]: Leaving mDNS multicast group on interface em1.IPv4 with address 172.16.1.14. Sep 7 15:53:31 localhost avahi-daemon[440]: Interface em1.IPv4 no longer relevant for mDNS. Sep 7 15:53:31 localhost NetworkManager[561]: <info> NetworkManager state is now DISCONNECTED Sep 7 15:53:31 localhost dbus-daemon: dbus[453]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' Sep 7 15:53:31 localhost dbus[453]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' Sep 7 15:53:31 localhost systemd: Starting Network Manager Script Dispatcher Service... Sep 7 15:53:31 localhost dbus-daemon: dbus[453]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Sep 7 15:53:31 localhost dbus[453]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Sep 7 15:53:31 localhost systemd: Started Network Manager Script Dispatcher Service. Sep 7 15:53:31 localhost chronyd[444]: Source A.B.C.D offline Sep 7 15:53:31 localhost chronyd[444]: Source E.F.G.H offline Sep 7 15:53:31 localhost chronyd[444]: Source I.J.K.L offline Sep 7 15:53:31 localhost chronyd[444]: Source M.N.O.P offline Sep 7 15:53:46 localhost kernel: [ 518.036282] e1000e: em1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx The above evidence show a lot of "Link Down" Sep 7 15:45:42 localhost kernel: [ 34.450480] e1000e: em1 NIC Link is Down Sep 7 15:50:22 localhost kernel: [ 314.209164] e1000e: em1 NIC Link is Down Sep 7 15:53:26 localhost kernel: [ 497.303607] e1000e: em1 NIC Link is Down Sep 7 15:55:25 localhost kernel: [ 616.802620] e1000e: em1 NIC Link is Down Sep 7 15:55:55 localhost kernel: [ 646.727116] e1000e: em1 NIC Link is Down Sep 7 16:00:26 localhost kernel: [ 917.677117] e1000e: em1 NIC Link is Down Sep 7 16:01:55 localhost kernel: [ 1006.171061] e1000e: em1 NIC Link is Down Sep 7 16:04:34 localhost kernel: [ 1164.759527] e1000e: em1 NIC Link is Down Sep 7 16:04:57 localhost kernel: [ 1187.500220] e1000e: em1 NIC Link is Down Sep 7 16:05:20 localhost kernel: [ 1210.888444] e1000e: em1 NIC Link is Down Sep 7 16:07:40 localhost kernel: [ 1350.364171] e1000e: em1 NIC Link is Down Sep 7 16:09:16 localhost kernel: [ 1446.607068] e1000e: em1 NIC Link is Down Sep 7 16:10:03 localhost kernel: [ 1493.584759] e1000e: em1 NIC Link is Down Sep 7 16:17:39 localhost kernel: [ 1949.527546] e1000e: em1 NIC Link is Down Sep 7 16:20:36 localhost kernel: [ 2125.682091] e1000e: em1 NIC Link is Down Sep 7 16:21:21 localhost kernel: [ 2171.311440] e1000e: em1 NIC Link is Down []s
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