This problem occurs, when your operation system does not offer any port for the client.
We use Ephemeral ports ranges for the client (http://en.wikipedia.org/wiki/Ephemeral_port) and you will get this error from the client, when we can not open any port for the client.
Possible reasons are:
- Firewall/Antivirus tools block the client
- The network card wasn't found or could not opened
- A P2P program blocks all ports
- You computer could be infected with a trojan or botnet (we have several answers were adware cleaner or other scanners did help).
Please check all these points. It's a local problem on your computer.
The TeamSpeak developers can not fix this.
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