Hmm I was thinking of changing to Unitymedia because where I move there is no glasfibre-cable. But since you all complain I'm not so sure anymore.
Btw: I had the problem that only some servers showed up for me but not 1,2,3. After I deactivated every other connection apart from my Internet-connection it worked.
(I had Hamachi as an additional connection running. After deactivating that it worked flawlessly)...
But If your problem really is about the provider that sucks ass.