Socket Error # 10013 - Permission denied

[Archion]

I could not connect our guild's TS server, so i tried to click Public Test Servers at http://www.goteamspeak.com/index.php?page=getstarted

Servers:
TeamSpeak Public -2-
TeamSpeak Public -3-

Give me the following results:

19-08-06 12:23:26,3696,DEBUG,ProcedureInfo,Client Open,host 213.202.254.117 resolved to 213.202.254.117
19-08-06 12:23:26,3696,DEBUG,ProcedureInfo,Client Open,Send LoginStep1
19-08-06 12:23:26,3696,ERROR,ProcedureInfo,Client Open,EidSocket: Socket Error # 10013
Access denied.

19-08-06 12:23:31,3696,DEBUG,ProcedureInfo,Client Open,host 213.202.254.117 resolved to 213.202.254.117
19-08-06 12:23:31,3696,DEBUG,ProcedureInfo,Client Open,Send LoginStep1
19-08-06 12:23:31,3696,ERROR,ProcedureInfo,Client Open,EidSocket: Socket Error # 10013
Access denied.

My client version is TeamSpeak 2 2.0.32.60 and I can ping the IP-address.

Can anyone help me please to debug this?

[guldi]

access denied ?
Just a bloody guess: firewall ?