Can't reach TS3 server

[sonezu]

Hello again!

Thanks for helping me on my previous problem with setting up my TS3 server.

Now with my server running I got one final problem:
I cannot reach my server through the client.

Here goes my _0 log:

2015-06-24 12:09:00.218037|INFO    |ServerLibPriv |   | TeamSpeak 3 Server 3.0.11.3 (2015-04-13 13:26:31)
2015-06-24 12:09:00.218240|INFO    |ServerLibPriv |   | SystemInformation: Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u1 x86_64 Binary: 64bit
2015-06-24 12:09:00.218329|INFO    |ServerLibPriv |   | Using hardware aes
2015-06-24 12:09:00.219421|INFO    |DatabaseQuery |   | dbPlugin name:    SQLite3 plugin, Version 2, (c)TeamSpeak Systems GmbH
2015-06-24 12:09:00.219517|INFO    |DatabaseQuery |   | dbPlugin version: 3.6.21
2015-06-24 12:09:00.220045|INFO    |DatabaseQuery |   | checking database integrity (may take a while)
2015-06-24 12:09:00.235465|INFO    |SQL           |   | db_CreateTables() tables created
2015-06-24 12:09:00.344351|WARNING |Accounting    |   | Unable to find valid license key, falling back to limited functionality
2015-06-24 12:09:00.782085|INFO    |              |   | Puzzle precompute time: 429
2015-06-24 12:09:00.782391|INFO    |FileManager   |   | listening on 0.0.0.0:30033
2015-06-24 12:09:00.785186|INFO    |VirtualSvrMgr |   | executing monthly interval
2015-06-24 12:09:00.785294|INFO    |VirtualSvrMgr |   | reset virtualserver traffic statistics
2015-06-24 12:09:00.908724|INFO    |CIDRManager   |   | updated query_ip_whitelist ips: 127.0.0.1, 
2015-06-24 12:09:00.909011|INFO    |Query         |   | listening on 0.0.0.0:10011
2015-06-24 12:12:11.767140|INFO    |Query         |   | query from 1 XX.XXX.XXX.XXX:51246 issued: login with account "serveradmin"(serveradmin)

(IP censored)

and here comes my _1:

2015-06-24 12:09:00.900482|INFO    |VirtualServer |  1| listening on 0.0.0.0:9987
2015-06-24 12:09:00.900780|INFO    |VirtualServer |  1| client 'server'(id:0) added privilege key for servergroup 'Server Admin'(id:6)
2015-06-24 12:09:00.900822|WARNING |VirtualServer |  1| --------------------------------------------------------
2015-06-24 12:09:00.900855|WARNING |VirtualServer |  1| ServerAdmin privilege key created, please use the line below
2015-06-24 12:09:00.900886|WARNING |VirtualServer |  1| token=xxxxxxxxxxxxxxxxx
2015-06-24 12:09:00.900915|WARNING |VirtualServer |  1| --------------------------------------------------------

(token censored)

All ports should be open as netstat -nutpl proves:

tcp        0      0 0.0.0.0:30033           0.0.0.0:*               LISTEN      22107/ts3server_lin
tcp        0      0 0.0.0.0:10011           0.0.0.0:*               LISTEN      22107/ts3server_lin
[...]
udp        0      0 0.0.0.0:9987            0.0.0.0:*                           22107/ts3server_lin

As you can see in the log, I was able to reach the server via telnet-query qithout any problems. But still I'm unable to reach the server with the client.

I tried to connect through multiple Domains and of course with the one and only IP (the same I used for the telnet query).

Pls, be my hero and solve this with me!

[Master_D]

Is there any firewall-script, that maybe deny the connection to specific ports?

Please append an output of your firewall.

[sonezu]

Since this is a managed server I do not know excactly which scripts are running in the background. Is there a way to check that for me as a non-root user?

Thank you for your time!

[Master_D]

Maybe there is a webinterface, where you can check this.

If there is no way to check by yourself, please ask your provider, which firewall-settings are set on your server.

The following ports are needed to be available for connectiong to your server:

9987 (UDP) is needed for voice-connections.
30033 (TCP) is needed for filetransfers (optional)
10011 (TCP) is needed for query-connections (optional)

Please check, if the mentioned ports are available remotely, otherwise contact your provider to open the ports within your firewall.