[HELP] Teeworlds Server Prob

So:
1) your inet work perfectly
2) you can't contact the masterserver, or better, you can contact the masterserver but you can't query the servers
3) you have this problems only with teeworlds, not with other games
4) If you try to join a server listed or directly by IP (i suppose) u get kicked by "timeout".

Point 2 and 4 are saying me that point 1 and point 3 aren't really true... xD
Btw, Teeworlds use an architecture client-server on port UDP, so be sure they are opened. If this is not the problem... I don't know... try to re-dowload the game... try to deactivate every firewall software (or hardware) and so on...
I think there is something blocking your teeworlds traffic.

UDP ports are usually blocked by your router (or firewall hardware), by your firewall (software), or by your ISP.
1st case BY ROUTER OR HW FIREWALL:
you need to enter your device configuration, through telnet or through HTTP interface. Open cmd, write ipconfig and read the "Default gateway" IP address. After, open it in a browser: http://192.168.0.1 (for example).

2nd case BY FIREWALL SOFTWARE:
there are software like Windows Firewall or ZonaAlarm that block applications. You need to deactivate them ALL.

3rd case BY ISP:
there are no solution for this. You can try to ask your ISP to have a public IP address if you are on a NAT network, or to open some ports if are closed. Btw, they'll probably don't do that or do that only under a payment.