Can't connect to games

[t-master]

Hi,
I'm unable to connect to 99% of all mow servers.
I'm always either stuck on "Connecting ..." or I get "Specified game server does not respond".

I already forwareded all ports related to mov, I set it on the whitelist of my antivirus programm, I reinstalled it (about 1 or 2 months before it worked flawlessly with the same patch and installation).

Is there anything I can do about this?