ah, i found the problem:
[16:51:48] OTTD-4 * ---> Kris Indonesia (#178/subs05-223-255-224-14.three.co.id [223.255.224.14]/ID) has joined the game
[16:51:48] OTTD-4 * >> Kris Indonesia (#178/subs05-223-255-224-14.three.co.id [223.255.224.14]/ID) has joined spectators
[16:51:48] OTTD-4 * !! Kris Indonesia (#178/255 (Spectator)) has been detected as open proxy/botnet zombie! Banning player!
[16:51:48] OTTD-4 * <--- Kris Indonesia (#178/subs05-223-255-224-14.three.co.id [223.255.224.14]/255 (Spectator)/ID) has left the game (kicked by server)
CHECK -> DNSBL -> 223.255.224.14 appears in BL zone dnsbl.dronebl.org (Unknown spambot or drone)
your IP is blacklisted, see here:
http://www.dronebl.org/lookup?ip=223.255.224.14it says:
infected with an unknown worm, trojan or spam drone: run any antivirus software you may have.
this blacklist is not under our control. you need to fix your computer first and then press the "request removal" link they are providing there.