Comment # 36 on bug 902779 from Thomas Blume

(In reply to Sebastian Kuhne from comment #35)
> 
> Since we understand now a little better the backgrounds - how do we continue
> on that issue? Is this a behavior which is probably related to my hardware
> only, and I have to live with? Or is this something of general interest for
> the team which should to be resolved because other users might be affected
> as well? I would love to help you further.

In 13.2 and newer, NetworkManager is not the default network setup method
anymore.
Can you try using wicked for network setup?

In order to do so, go into YaST2 > Network Settings

and switch in the Tab:

Global Options

the 'Network Setup Method' to 'Wicked Service'

Is the issue still present when you are using wicked instead of NetworkManager?