Help to my Server

Start your browser and go to the adress bar and write: fritz.box. The web interface of your fritzbox should appear now and you have to type your password to enter. If you did this, go to "Internet" tab on the left and the to "Freigaben". Then hit "Neue Portfreigabe". At "Portfreigabe aktiv für" choose "Andere Anwendung". "Bezeichnung" can be something like "Teeworlds Server" or whatever, this doesn't matter. Protokoll has to be "UDP". At "Von Port" you have to write 8304 because the error messages says this and you set 8304 as port in your config file. At "Bis Port" you can leave a blanc, so just write nothing in it. Then choose your computer at "An Computer" and IP should be set automaticly beacause every computer has it own IP in your network. At least, set at "An Port" the same port as above, which means 8304. THen hit OK and it should work. At least for me it does.

(Btw, I've another Fritzbox but I don't think there are that many indifferences...)