öffne in deinem router eine port range von 26000-26003 für UDP und TCP(in den server files einfach den port 26000 einstellen), das sollte ausreichen und dein server wird innerhalb 5min in der liste auftauchen. hatte auch das problem.....
bsp
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<config>
<ID>1</ID> <!-- Number of server instance. Must be unique accross one server and one DB engine -->
<name>Dein Server Name</name> <!-- No more than 63 symbols! -->
<password></password> <!-- will be required for new clients to join if not blank (no more than 32 symbols) -->
<adminPassword>dein password</adminPassword> <!-- GM password (no more than 32 symbols) -->
<mode>Sandbox</mode> <!-- Not Working -->
<isPrivate>0</isPrivate> <!-- =1 Will not be listed in servers browser -->
<isActive>1</isActive> <!-- Must be 1! (for internal use) -->
<skillsStatsMult>1</skillsStatsMult> <!-- =1 is vanilla MMO skills progression setting (range: 0.1 - 100) -->
<skillcap>1200</skillcap> <!-- =600 is vanilla MMO skill cap (range: 200 - 3000) -->
<terraformingSpeed>0.8</terraformingSpeed> <!-- Terraforming speed during TUNNELING only. 0.8 is a vanilla setting. Can be raised up to 60, but only players with GM powers will be able to dig tunnels with a single iteration (range: 0.1 - 5) -->
<craftingPeriod>60</craftingPeriod> <!-- seconds for 1 crafting tick (burning of fuel, heating of objects etc) (range: 1 - 3600) -->
<animalBFPeriod>60</animalBFPeriod> <!-- minutes between a breeding check. New harvest, dung and young animals will appear on that tick (range: 1 - 600) -->
<dayCycle>6</dayCycle> <!-- Real life hours per in game day. Affects speed of crops and trees growth (range: 0.5 - 24) -->
<animalsCount>25</animalsCount> <!-- WARNING! Big numbers might result a heavy server load. We'd recommend 50 or 100, but you can always experiment on your own hardware
Amount of animal spawn points and may result in a maximum of spawned animals at once. (range: 0 - 100) -->
<maxPlayers>24</maxPlayers> <!-- Maximum amount of SIMULTANEOUS players on one server (range: 1 - 64) -->
<port>26000</port> <!-- better have that port and +1 +2 port numbers opened and routed if needed. For instance, if you set that number for 26000, you will need to have 26001 and 26002 to be opened also. -->
</config>