0.13.3 local Game will not start, not valid address

[Vetinary]

First time trying to run factorio on a local network, no Internet connection ist available.
Trying to start a game and get a "pingpong1.factorio.com:34197 ist not a valid address" error message.
Cliking the ok Button does nothing, i have to force factorio down via Task Manager.

Why does factorio try to connect to an Internet address at this point? The whole point of a lan game is that it's offline.

Tried this both on win10 64bit and win7 32bit, on Steam and no steam Version of the game. Also on loadig and creating a new Map for lan.

[HanziQ]

Fixed for the next release.