ftp connections via kde apps take extremely long

There is a long delay starting FTP connections from KDE apps. Same behavior with krusader, konqueror, rekonq and dolphin.

Immediately after establishing a connection with networkmanager FTP connections are immediate. After letting some time pass the following message appears in syslog and the FTP connections (and thus the program trying to establish the connection) hang upon connect:

May 4 20:25:16 viper1 dbus[568]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
May 4 20:25:16 viper1 dbus[568]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'

Honestly, I'm not sure if this is a dbus, or network manager issue, but the kde apps are the only ones I've found affected.

After I get this message, I can choose to disconnect via the plasmoid, then reconnect to the network and FTP connections are instant again, for a while, until the dbus nm_dispatcher message is logged again.

sftp, fish, and smb all seem to work fine.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: kde-runtime 4:4.13.0-0ubuntu1
Uname: Linux 3.15.0-031500rc3-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Sun May 4 20:29:53 2014
InstallationDate: Installed on 2014-03-21 (44 days ago)
InstallationMedia: It
SourcePackage: kde-runtime
UpgradeStatus: Upgraded to trusty on 2014-03-24 (41 days ago)