Connection problems can occur. Some common problems related to NetworkManager include the applet not starting, a missing VPN option, and issues with SCPM. Methods for resolving and preventing these problems depend on the tool used.
The GNOME and KDE NetworkManager applets start automatically if the network is
set up for NetworkManager control. If the applet does not start, check if NetworkManager
is enabled in YaST as described in
Section 5.2, “Enabling NetworkManager”. Then make sure that the appropriate
package for your desktop environment is also installed. If you are
using KDE 4, the package is
NetworkManager-kde4. For GNOME
users the package is
NetworkManager-gnome.
If the desktop applet is installed but is not running for some reason, start it manually with the command nm-applet (GNOME) or knetworkmanager (KDE).
Support for NetworkManager, applets, and VPN for NetworkManager is distributed in separate packages. If your NetworkManager applet does not include the VPN option, check if the packages with NetworkManager support for your VPN technology are installed. For more information, see Section 5.6, “NetworkManager and VPN”.
You are probably using SCPM together with NetworkManager. NetworkManager is not currently able to work with SCPM profiles. Do not use NetworkManager together with SCPM when SCPM profiles also change network settings. To use SCPM and NetworkManager at the same time, disable the network resource in SCPM configuration.
If you have configured your network connection correctly and all other
components for the network connection (router, etc.) are also up and
running, it sometimes helps to restart the network interfaces on your
computer. To do so, log in to a command line as root and run
rcnetwork restart.