Ben - 2013-06-10

I have looked up this problem many times and i havent been able to connect for a few days now

i go to connect to the server: mumble.maguuma.net and i get the notification saying

[5:37:15 PM] Connecting to server Mumble.maguuma.net.

then around 30 seconds later

[5:37:45 PM] Disconnected from server.

i dont know what caused this. but any help or insight would be great.
also i have re-installed mumble, restarted modem and router.

I have turned of QoS but still no luck, i can connect to any other server fine just this specific one i can't. From what i know i haven't been banned either