Hello there, I just downloaded nexuiz and it's great

! Unfortunately, I've some probkems with the multiplayer function. People cannot see my server and I forwarded port 26000 (tcp&udp) and I setted the udp port to 26000 in Nexuiz (Multiplayer>Player Setup). My server's name is cumulus007 Nexuiz Server. Directly after setting up the server, the ping is 0 (logically, it's my own computer). But after a while, the ping becomes to 9999. How is this possible and how can I setup a server properly?