Java chat not work trought mikrotik?

When I try to connect to http://www.iskon.hr/chat/chat.jsp
I cannot connect … Java console show me error:
Error: java.net.ConnectException: Connection timed out: connect
bubble.chat version 462

I have mikrotik 2.8.28 with hotspot setup, and rules for blocking virus connections and also for blocking synflood.
Well I try to disable this rules … but there is no change …
Does maybe somewhone know which firewall rule maybe block this kind of chat ?
Mozda zna neko iz EX-YU?

Well guys thanks for nothing :smiley: ,
but I found solution … this java chat working on same port like virus Dumaru.Y - 10000 which my virus list blocking … just unblock this rule , and now is fine …
Also I was try never version of mikrotik 2.9 … im very disapointed … everything is fine but when I make setup for hotspot my network is “going totaly crazy” … I was sent suport file to mikrotik suport , and maybe next release will be better.
So I was make downgrade …(welcome to the club :smiley: )