Firstly, please do everything you can to verify that it's not an issue with your connection by trying to connect to another TeamSpeak server. 

If you can connect to another server without issue, please run a tracert:

  1. Run Command Prompt as admin.
  2. Type tracert and hit enter.
  3. Try again to connect.
  4. If it still doesn't work, send that tracert report to support.