Hello guys ,
since few days I have a problem with my teamspeak server . I can't connect to it . I checked the logs I don't recieve a error nothing . I have a dedicated server that is running Debian .

Client logs:
Code:
7/29/2015 14:27:25	ClientUI	Info	Initiating connection: 149.202.131.218:9987 ts3.enterforce.net	
7/29/2015 14:27:25	ClientUI	Info	Connect status: Connecting	
7/29/2015 14:27:30	ClientUI	Info	Connect status: Disconnected	
7/29/2015 14:27:30	ClientUI	Info	Failed to connect to server, want autoreconnect = 0
Server logs:
Code:
2015-07-29 12:24:47.241230|INFO    |ServerLibPriv |   | TeamSpeak 3 Server 3.0.11.3 (2015-04-13 13:26:31)
2015-07-29 12:24:47.241408|INFO    |ServerLibPriv |   | SystemInformation: Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u2 x86_64 Binary: 64bit
2015-07-29 12:24:47.242216|INFO    |DatabaseQuery |   | dbPlugin name:    SQLite3 plugin, Version 2, (c)TeamSpeak Systems GmbH
2015-07-29 12:24:47.242269|INFO    |DatabaseQuery |   | dbPlugin version: 3.6.21
2015-07-29 12:24:47.242632|INFO    |DatabaseQuery |   | checking database integrity (may take a while)
2015-07-29 12:24:47.264287|WARNING |Accounting    |   | Unable to find valid license key, falling back to limited functionality
2015-07-29 12:24:47.938182|INFO    |              |   | Puzzle precompute time: 663
2015-07-29 12:24:47.938552|INFO    |FileManager   |   | listening on 0.0.0.0:30033
2015-07-29 12:25:07.955944|ERROR   |              |   | TS3ANetwork::ResolveHostName failed error: -3 (Temporärer Fehler bei der Namensauflösung) 11
2015-07-29 12:25:07.956032|ERROR   |              |   | Could not open default UDP connection for weblist
2015-07-29 12:25:08.000901|INFO    |CIDRManager   |   | updated query_ip_whitelist ips: 127.0.0.1, 208.167.241.190, 208.167.241.185, 208.167.241.186, 208.167.241.183, 208.167.241.189, 108.61.78.147, 108.61.78.148, 108.61.78.149, 108.61.78.150, 
2015-07-29 12:25:08.001588|INFO    |Query         |   | listening on 0.0.0.0:10011