There seems to be some problem with the datafiles. I will have a look at that today.
I can connect to the server and run around, but nobody else can. I don't have the atomic edition from gog, but have bought it and will install it on the server today and try again.
The server is started on a headless server I installed eduke on and run with dummy sdl videodriver and direct commandline start of the eduke server and level.