Git clone with ssh does nothing

Question

If I try to clone a repo with:

MacBook:Git User$ git clone git@github.com:User/Betriebssysteme.git

it will stuck at

Cloning into 'Betriebssysteme'...

and wont go any further.

I'm using the new MacBook Pro and added a ssh-key. If I'm working with the http download from git it works fine. The repository is private.

EDIT: I found out, that my WLAN isn't good enough to handle it. If I'm going to connect my PC with LAN it works.

Can I make my WLAn better? It's already in a good position.

Answer 1

My EasyBox couldn't handle the ssh-protocol. Had to buy a FRITZ!Box 7490 and now it works.The easybox 804 can't work with ssh.