It looks like your Neuz executable is using port
5400 instead of
15400, but I'm not entirely sure that this is the problem. You could give it a try.
http://img713.imageshack.us/img713/5...rdflyffneu.png
Oh, just downloaded those server files you're using, and they use port
5400 in the cacheserver, so try changing
5400 to
15400 in
CacheServer.ini (Neuz should still be using port
15400!)
If that fails, look for any application that might be using port
15400, other than your executables from the flyff server.