title: Why does git push fails with "Operation timed out"?
body: <pre><code>MacMini $ git push origin master
  Counting objects: 1916, done.
  Delta compression using up to 2 threads.
  Compressing objects: 100% (1751/1751), done.
  Read from remote host codebasehq.com: Operation timed out
  fatal: The remote end hung up unexpectedly
  error: pack-objects died of signal 13
  error: pack-objects died with strange error
  error: failed to push some refs to 'git@codebasehq.com:xx/xx/xx.git'
  </code></pre>