User blog comment:Volknur/The Problem with PvP in Dark Souls/@comment-11388043-20130711205752/@comment-4511886-20130712065455

From stated that all the problems with lag and failed connections is because of the peer-to-peer system used to connect to others.

They also said that DaS 2 is going to have their own servers so that everything in multiplayer will be smoother.