Hello Martin,
Good Morning again,
we will continue with the network stack soon.
If you want to join remotely, here is the PlaceCam link: http://placecam.de/call.php?c=0~dA5j0OrfTdsesyQKlqIZvQi7bo1YKYGdMORGFmqL8-
How-To use it? https://github.com/RIOT-OS/RIOT/wiki/Instructions-for-remote-participation
Cheers, Hauke