Multiplayer support in 4.13 - not working

Hi Guys,

I want to experiment with Vive & multiplayer.
I can see that the character is set to be replicated, but I cannot see my friend when he connects.
We both see the level and can play with the cubes but we cannot see each other.
I don`t think its a network problem as we tested the ThirdPerson template and everything is working.

Am I missing something?
Can someone help pointing me to the right direction?

Thank in advance!