Unable to Connect to our Clan Teamspeak

This is the clientlog for the Server i trying to join.

Quote:

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01.10.2015 10:17:26 ClientUI Info Qt version: 5.5.0
01.10.2015 10:17:26 ClientUI Info Using configuration location: C:\Users\user\AppData\Roaming\TS3Client\settings.d b
01.10.2015 10:17:27 ClientUI Info Last update check was: Mi Sep 30 12:08:42 2015
01.10.2015 10:17:27 ClientUI Info Checking for update
01.10.2015 10:17:27 Update Info Checking for updates...
01.10.2015 10:17:27 Newsticker Info Newsticker next check: Do Okt 1 01:38:57 2015
01.10.2015 10:17:29 Newsticker Info Newsticker received for language de, expires on Do Okt 1 12:47:28 2015, next check in 1800 seconds
01.10.2015 10:17:29 Update Info Check license version: 1
01.10.2015 10:17:29 Update Info Check client version: 3.0.18 1442998335
01.10.2015 10:17:29 Update Info Update check, my version: 1442998335, latest version: 1442998335
01.10.2015 10:17:29 Info Statistics report: User previously denied participation
01.10.2015 10:17:30 ClientUI Info Connect to server: 89.163.196.224
01.10.2015 10:17:30 ClientUI Info Blacklist check ok
01.10.2015 10:17:30 ClientUI Info Initiating connection: 89.163.196.224:9987 89.163.196.224
01.10.2015 10:17:31 Windows Audio Session Devel DeviceDeleteList::waitForDeletes - enter
01.10.2015 10:17:31 Windows Audio Session Devel DeviceDeleteList::waitForDeletes - leave
01.10.2015 10:17:31 Windows Audio Session Debug WAS::openDevice-enter
01.10.2015 10:17:31 Windows Audio Session Debug WAS Buffer size: 960
01.10.2015 10:17:31 Windows Audio Session Debug WAS::openDevice-leave
01.10.2015 10:17:31 Windows Audio Session Debug WAS::startDevice-enter
01.10.2015 10:17:31 Windows Audio Session Debug WAS::startDevice-leave
01.10.2015 10:17:31 Windows Audio Session Devel DeviceDeleteList::waitForDeletes - enter
01.10.2015 10:17:31 Windows Audio Session Devel DeviceDeleteList::waitForDeletes - leave
01.10.2015 10:17:31 Windows Audio Session Debug WAS::openDevice-enter
01.10.2015 10:17:31 Windows Audio Session Debug WAS Buffer size: 320
01.10.2015 10:17:31 Windows Audio Session Debug WAS::openDevice-leave
01.10.2015 10:17:31 PreProSpeex Info Speex version: speex-1.2beta3
01.10.2015 10:17:31 Windows Audio Session Debug WAS::startDevice-enter
01.10.2015 10:17:31 Windows Audio Session Debug WAS::startDevice-leave
01.10.2015 10:17:31 Windows Audio Session Debug WAS::associateAECDevice-enter
01.10.2015 10:17:31 Windows Audio Session Debug WAS Buffer size: 960
01.10.2015 10:17:31 Windows Audio Session Debug WAS::associateAECDevice-leave
01.10.2015 10:17:31 ClientUI Info Connect status: Connecting
01.10.2015 10:17:36 ClientUI Info Connect status: Disconnected
01.10.2015 10:17:36 ClientUI Info Failed to connect to server, want autoreconnect = 0

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Unable to Connect to our Clan Teamspeak