[SOLVED]Server doesn't show up on serverlist, but is connectable

[SirHaxalot]

I can connect to my server by adding it to the favourites or connect via the console, but my servers doesn't show up in the serverlist. It can't be a port fowarding issue because everyone can connect with the IP, right?

Server OS: Windows 2008 R2 x64
Processor: Intel Q9400 @ 3,2Ghz
Ram: 8GB
Game(s): 4x TF2
Start Up Command: start /wait srcds.exe -console -game tf -port 27015 +hostport 27015 +exec config_all.cfg +map cp_gravelpit
Admin Mods: SourceMod

Solved, see this post: http://forums.srcds.com/viewpost/30485#pid30485