I have talked to the admin of the according server. He says the Handshake fails, as seen in the Log (as well as in the rawlog), at the Point where a PONG is expected by the server. His only explanation to this behaviour is that the connection would be _very_ slow, which is definitely not the case.
I think it's ok to close the bug here, since I can't provide any more detailed info to this :/ -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org