Server doesn't show up on master server list

[Thomas]

I recently bought a new router. I tried to host a server today, but I seem to have some issues with it.

First: Whatever I try, it never shows up on the master server.

Second: When I use the default port for the server (10666) and I let others manually connect (by typing connect in the console), they get stuck on connecting, however I do see some weird messages in the console, of which I have no idea what they mean, I haven't tried today so I don't know the exact message atm, will post that later.

When I bind my server to port 80 (which I normally use for my webserver), connecting manually works fine somehow, but it still doesn't show up on the master list :(.

Does anyone maybe know how to solve this and how to get my server on the master server list?

[Watermelon]

Try opening ports 15300 as well in addition to 10666, check to see that it's actually trying to use port 10666. See if UD*P or whatever its called is used (I forget it, its like U something something P) if all else fails.

Use a program to see if a port is open (I use Soulseek, for some reason other port programs don't seem to work).

[Thomas]

This is weird, port 10666 seems closed indeed. I tried this service to check it: http://www.ipfingerprints.com/portscan.php

When I use port 80 it says that it's opened but when I full in 10666 it says it's closed, even though I have the exact same rules in my router settings (different port numbers of course). Same goes with 15300.

Somehow, I can't seem to open any port besides port 80?
Anyone has any idea of what might be going on here?

EDIT: Never mind, I used a proper port checker, and confirmed that all ports are open. Apparently opening port 15300 did the trick. Last time I was hosting servers just opening port 10666 was enough. Oh well, thanks for the help!